A college friend slapped him on the shoulder, took his hand, and shook it vigorously. Proxime accessit was obviously impressive in some people's eyes, if not in William's.

"Well done, William."

"Second place is not worthy of praise," said William disdainfully.

"But you won, Billy boy."

Philippa and William stared at each other.

"What do you mean?" said William.

"Exactly what I said. You've won the Charles Oldham."

Philippa and William ran to the board and studied the notice: CHARLES OLDHAM MEMORIAL PRIZE.

THE EXAMINERS FELT UNABLE ON THIS OCCASION TO.

AWARD THE PRIZE TO ONE PERSON AND HAVE THEREFORE.

DECIDED THAT IT SHOULD BE SHARED BY ...

They gazed at the bulletin board in silence for some moments. Finally, Philippa bit her lip and said in a small voice: "Well, you didn't do too badly, considering the competition. I'm prepared to honor my undertaking, 'but, by this light, I take thee for pity.'"

William needed no prompting. "'I would not deny you; but, by this good day, I yield upon great persuasion, ... for I was told you were in a consumption.'"

And to the delight of their peers and the amazement of the retreating don, they embraced under the bulletin board.

Rumor had it that from that moment on they were never apart for more than a few hours.

The marriage took place a month later in Philippa's family church at Brockenhurst. "Well, when you think about it," said William's roommate, "who else could she have married?" The contentious couple started their honeymoon in Athens arguing about the relative significance of Doric and Ionic architecture, of which neither knew any more than they had covertly read, in a cheap tourist guidebook. They sailed on to Istanbul, where William prostrated himself at the front of every mosque he could find while Philippa stood on her own at the back fuming at the Turks' treatment of women.

"The Turks are a shrewd race," declared William. "So quick to appreciate real worth."

"Then why don't you embrace the Muslim religion, William, and I need only be in your presence once a year?"

"The misfortune of birth, a misplaced loyalty, and the signing of an unfortunate contract dictate that I spend the rest of my life with you."

Back at Oxford, with junior research fellowships at their respective colleges, they settled down to serious creative work. William embarked upon a massive study of word usage in Marlowe and, in his spare moments, taught himself statistics to assist his findings. Philippa chose as her subject the influence of the Reformation on seventeenth-century English writers and was soon drawn beyond literature into art and music. She bought herself a spinet and took to playing Dowland and Gibbons in the evening.

"For Christ's sake," said William, exasperated by the tinny sound. "You won't deduce their religious convictions from their key signatures."

"More informative than ifs and ands, my dear," she said, imperturbably, "and at night so much more relaxing than pots and pans."

Three years later, with well-received Ph.D.'s, they moved on, inexorably in tandem, to college teaching fellowships. As the long shadow of fascism fell across Europe, they read, wrote, criticized, and coached by quiet firesides in unchanging quadrangles.

"A rather dull Schools year for me," said William, "but I still managed five firsts from a field of eleven."

"An even duller one for me," said Philippa, "but somehow I squeezed three firsts out of six, and you won't have to invoke the binomial theorem, William, to work out that it's an arithmetical victory for me."

"The chairman of the examiners tells me," said William, "that a greater part of what your pupils say is no more than a recitation from memory."

"He told me," she retorted, "that yours have to make it up as they go along."

When they dined together in college, the guest list was always quickly filled, and as soon as grace had been said, the sharpness of their dialogue would flash across the candelabra.

"I hear a rumor, Philippa, that the college doesn't feel able to renew your fellowship at the end of the year?"

"I fear you speak the truth, William," she replied. "They decided they couldn't renew mine at the same time as offering me yours."

"Do you think they will ever make you a fellow of the British Academy, William?"

"I must say, with some considerable disappointment, never."

"I am sorry to hear that. Why not?"

"Because when they did invite me, I informed the president that I would prefer to wait to be elected at the same time as my wife."

Some nonuniversity guests sitting at high table for the first time took their verbal battles seriously; others could only be envious of such love.

One fellow uncharitably suggested they rehearsed their lines before coming to dinner for fear it might be thought they were getting on well together. During their early years as young dons, they became acknowledged as the leaders in their respective fields. Like magnets, they attracted the brightest undergraduates while apparently remaining poles apart themselves.

"Dr. Hatchard will be delivering half these lectures," Philippa announced at the start of the Michaelmas term of their joint lecture course on Arthurian legend. "But I can assure you it will not be the better half. You would be wise always to check which Dr. Hatchard is lecturing."

When Philippa was invited to give a series of lectures at Yale, William took a sabbatical so that he could be with her.

On the ship crossing the Atlantic, Philippa said, "Let's at least be thankful the journey is by sea, my dear, so we can't run out of gas."

"Rather let us thank God," replied William, "that the ship has an engine, because you would even take the wind out of Cunard's sails."

The only sadness in their lives was that Philippa could bear William no children, but if anything it drew the two closer together. Philippa lavished quasi-maternal affection on her tutorial pupils and allowed herself only the wry comment that she was spared the probability of producing a child with William's looks and William's brains.

At the outbreak of war William's expertise with handling words made a move into code-breaking inevitable. He was recruited by an anonymous gentleman who visited them at home with a briefcase chained to his wrist. Philippa listened shamelessly at the keyhole while they discussed the problems they had come up against and burst into the room and demanded to be recruited as well.

"Do you realize that I can complete the Times crossword puzzle in half the time my husband can?"

The anonymous man was only thankful that he wasn't chained to Philippa. He drafted them both to the Admiralty section to deal with encrypted wireless messages to and from German submarines.

The German signal manual was a four-letter codebook, and each message was recrypted, the substitution table changing daily. William taught Philippa how to evaluate letter frequencies, and she applied her new knowledge to modern German texts, coming up with a frequency analysis that was soon used by every code-breaking department in the Commonwealth.

Even so, breaking the ciphers and building up the master signal book was a colossal task, which took them the best part of two years.

"I never knew your ifs and ands could be so informative," she said admiringly of her own work.

When the Allies invaded Europe, husband and wife could together often break ciphers with no more than half a dozen lines of encrypted text to go on.

"They're an illiterate lot," grumbled William. "They don't encipher their umlauts. They deserve to be misunderstood."

"How can you give an opinion when you never dot your i's, William?"

"Because I consider the dot is redundant, and I hope to be responsible for removing it from the English language."

"Is that to be your major contribution to scholarship, William? If so I am bound to ask how anyone reading the essays of most of our undergraduates would be able to tell the difference between an I and an i."

"A feeble argument, my dear, which, if it had any conviction, would demand that you put a dot on top of an n so as to be sure it wasn't mistaken for an h."

"Keep working away at your theories, William, because I intend to spend my energy removing more than the dot and the I from Hitler."

In May 1945 they dined privately with Prime Minister and Mrs. Churchill at 10 Downing Street.

"What did the prime minister mean when he said to me that he could never understand what you were up to?" asked Philippa in the taxi to Paddington Station.

"The same as when he said to me that he knew exactly what you were capable of, I suppose," said William.

When the Merton professor of English retired in the early 1950s the whole university waited to see which Doctor Hatchard would be appointed to the chair.

"If the council invites you to take the chair," said William, putting his hand through his graying hair, "it will be because they are going to make me vice-chancellor."

"The only way you could ever be invited to hold a position so far beyond your ability would be nepotism, which would mean I was already vice-chancellor."

The general board, after several hours' discussion of the problem, offered two chairs and appointed William and Philippa full professors on the same day.

When the vice-chancellor was asked why precedent had been broken, he replied: "Simple. If I hadn't given them both a chair, one of them would have been after my job."

That night, after a celebration dinner, when they were walking home together along the banks of the Isis across Christ Church Meadows, in the midst of a particularly heated argument about the quality of the last volume of Proust's monumental work, a policeman, noticing the affray, ran over to them and asked: "Is everything all right, madam?"

"No, it is not," William interjected. "This woman has been attacking me for over thirty years, and to date the police have done deplorably little to protect me."

In the late fifties Harold Macmillan invited Philippa to join the board of the Independent Broadcasting Authority.

"I suppose you'll become what's known as a telly don," said William. "And as the average mental age of those who watch the box is seven you should feel quite at home."

"Agreed," said Philippa. "Twenty years of living with you has made me fully qualified to deal with infants."

The chairman of the BBC wrote to William a few weeks later inviting him to join its board of governors.

"Are you to replace Hancock's Half Hour or Dick Barton, Special Agent?" Philippa inquired.

"I am to give a series of twelve lectures."

"On what subject, pray?"

"Genius."

Philippa flicked through the Radio Times. "I see that Genius is to be broadcast at two o'clock on a Sunday morning, which is understandable, as that's when you are at your most brilliant."

When William was awarded an honorary doctorate at Princeton, Philippa attended the ceremony and sat proudly in the front row.

"I tried to secure a place in the back," she explained, "but it was filled with sleeping students who had obviously never heard of you."

"If that's the case, Philippa, I am only surprised you didn't mistake them for one of your tutorial lectures."

As the years went on, many anecdotes, only some of which were apocryphal, passed into the Oxford fabric. Everyone in the English school knew the stories about the "fighting Hatchards": how they spent their first night together, how they jointly won the Charles Oldham, how Phil would complete the Times crossword before Bill had finished shaving, how each had both been appointed to a professorial chair on the same day, and how they both worked longer hours than any of their contemporaries, as if they still had something to prove, if only to each other. It seemed almost required by the laws of symmetry that they should always be judged equals-until it was announced in the New Year's Honours that Philippa had been made a Dame of the British Empire.

"At least our dear queen has worked out which one of us is truly worthy of recognition," she said over the college dessert.

"Our dear queen," said William, selecting the Madeira, "knows only too well how little competition there is in the women's colleges: Sometimes one must encourage weaker candidates in the hope that it might inspire some real talent lower down."

After that, whenever they attended a public function together, Philippa would have the MC announce them as "Professor William and Dame Philippa Hatchard." She looked forward to many happy years of starting every official occasion one up on her husband, but her triumph lasted for only six months: William received a knighthood in the Queen's Birthday Honours. Philippa feigned surprise at the dear queen's uncharacteristic lapse of judgment and forthwith insisted on their being introduced in public as Sir William and Dame Philippa Hatchard.

"Understandable," said William. "The queen had to make you a dame first in order that no one should mistake you for a lady. When I married you, Philippa, you were a young fellow, and now I find I'm living with an old dame."

"It's no wonder," said Philippa, "that your poor pupils can't make up their minds whether you're homosexual or you simply have a mother fixation. Be thankful that I did not accept Girton's invitation: Then you would have been married to a mistress."

"I always have been, you silly woman."

As the years passed, they never let up their pretended belief in the other's mental feebleness. Philippa's books, "works of considerable distinction," she insisted, were published by Oxford University Press, while William's, "works of monumental significance," he declared, were printed at the presses of Cambridge University.

The tally of newly appointed professors of English they had taught as undergraduates soon reached double digits.

"If you count polytechnics, I shall have to throw in Maguire's readership in Kenya," said William.

"You did not teach the professor of English at Nairobi," said Philippa. "I did. You taught the head of state, which may well account for why the university is so highly thought of while the country is in such disarray."

In the early sixties they conducted a battle of letters in the TLS on the works of Philip Sidney without ever discussing the subject in each other's presence. In the end the editor said the correspondence must stop and adjudicated a draw.

They both declared him an idiot.

If there was one act that annoyed William in old age about Philippa, it was her continued determination each morning to complete the Times crossword before he arrived at the breakfast table. For a time, William ordered two copies of the paper until Philippa filled them both in while explaining to him it was a waste of money.

One particular morning in June at the end of their final academic year before retirement, William came down to breakfast to find only one space in the crossword left for him to complete. He studied the clue: "Skelton reported that this landed in the soup." He immediately filled in the eight little boxes.

Philippa looked over his shoulder. "There's no such word, you arrogant man," she said firmly. "You made it up to annoy me." She placed in front of him a very hard-boiled egg.

"Of course there is, you silly woman; look 'whymwham' up in the dictionary."

Philippa checked in the Shorter Oxford among the cookbooks in the kitchen, and trumpeted her delight that it was nowhere to be found.

"My dear Dame Philippa," said William, as if he were addressing a particularly stupid pupil, "you surely cannot imagine because you are old and your hair has become very white that you are a sage. You must understand that the Shorter Oxford Dictionary was cobbled together for simpletons whose command of the English language stretches to no more than one hundred thousand words. When I go to college this morning I shall confirm the existence of the word in the OED on my desk. Need I remind you that the OED is a serious work which, with over five hundred thousand words, was designed for scholars like myself?"

"Rubbish," said Philippa. "When I am proved right, you will repeat this story word for word, including your offensive non-word, at Somerville's Gaudy Feast."