"Oh, you did. . . well, you could have risked perjury and given a definite answer."

Bowen shook his head. "Remember, sir, I was trying to get Captain Shirley on my side. I told him I could not discuss the condition of a patient with anyone else and he agreed - forgetting that surgeons have to give daily reports on every man reporting sick. He wanted to know how long I had served with you, how often you had been wounded, and so on. He belongs to that school of medical thought (dating back about five hundred years) that believes all madness is the result of a blow on the head. Have you ever had a blow on the head, sir?" Bowen asked innocently.

"No, only on my soup."

Bowen nodded. "I thought as much. Well, Captain Shirley and I talked, and he answered all my questions without hesitation. The only trouble is that when a man behaves quite sanely, it is very difficult (impossible, in fact) for a medical man to frame questions that would reveal insanity. You see, sanity or insanity is not like a fever, fractured limb, rash, sprained ligament or anything like that. I give you an example. Two men are sitting side by side, quietly daydreaming. One man is thinking how much he loves his wife. The other man has just murdered his wife and has her fortune in a leather bag beside his chair. One man is sane, the other insane. But looking at the two of them, and in ninety-nine cases out of a hundred, by talking to them, there is nothing to distinguish the mad one."

Ramage sighed with relief. "That was the feeling that Aitken, Southwick and I had - that the man seemed sane even though he had just behaved like a madman. Been a madman, rather."

"That's the problem, sir. I could take you to Moorfields and we could walk through the wards of Bethlehem Royal Hospital - better known perhaps as Bedlam - and men and women would come up to you and I defy you to distinguish whether they are inmates or visitors like yourself. Oh yes, there are many palpably insane - screaming, making faces, claiming to be Genghis Khan, and so on."

"They are the dangerous ones!" Ramage said.

"Not always, sir. A screaming man who wants to take an axe to all piebald horses is probably less dangerous - because one sees at once that he is deranged. But those only rarely insane are usually not violent."

"You mean, they don't get screaming mad?" Ramage asked. "They just go mad in a quiet way?"

Bowen smiled and acknowledged: "Yes, sir, I admit I may have been simplifying a little too much!"

"Anyway, you learned nothing about Captain Shirley. Very well, then what happened?"

"I then held a sick parade, beginning in the gunroom. The gunner and the third lieutenant were both sick. I noticed that all of them were drunk, in varying degrees. And all of them seemed to be frightened of something. Apprehensive, in the way men would be if they'd been told the day the world would end, and it's next Thursday but they have to keep it secret."

"Did you find out anything from the gunroom?"

"Nothing, except that they're all frightened and drunk. Then I saw about twenty of the rest of the ship's company. Nothing serious: just the 'illnesses' you find in an unhappy ship."

Ramage realized that Bowen had made a shrewd observation that applied to just about every ship in the Navy. Unless there was something about the station (the West Indies and the black vomit, for example) then a glance at the surgeon's journal, more formidably known officially as the Journal of Physical Transactions of the particular ship, probably told you all you needed to know about her captain - and her officers, too. In a well ordered ship there was no need to sham sickness. But the Jason's copy was missing: Bowen had just confirmed that . . .

Which did not get over the fact that Bowen had also confirmed that Shirley's form of madness was easy to hide, and dam' nearly impossible for anyone else to prove. And there was no clue to how (or why) Shirley was holding a whole ship's company in silent terror. Looking on the bright side, he had another frigate to help escort the convoy. In fact by normal standards the convoy now had a strong escort - four frigates for just over seventy ships: almost unheard-of these days. Providing, of course, that the Jason was not entirely useless as a fighting ship: a mad captain and drunken officers did not inspire confidence, but it meant -

"He's senior to you on the Post List, but you command the convoy," Southwick said.

"I've been thinking about that."

Southwick nodded because finding himself and his captain thinking alike was nothing very new. "Mind you, sir, that's not to say he has to obey any orders you give if he doesn't want to."

"No, but it does mean he can't use his seniority to take the command away from Mr Ramage," Aitken interjected. "Mr Ramage has his orders in writing from Admiral Tewtin."

"Let's not get too involved in that," Ramage said. "All that concerns us is that if I give the Jason an order concerning the safety of the convoy it's up to Shirley whether or not he obeys it. I think he will. He's obeyed my orders up to now - that's why the Jason is on our larboard beam."

"I dream of the day the Lizard comes in sight," Southwick said.

"I alternate," Ramage admitted. "Sometimes I dream about the day we anchor at Plymouth; at other times I have nightmares about it."

"Have pleasant dreams," Southwick advised. "There's not a damned thing we can do until we get there, and you know my advice - don't fret about something you can't do anything about."

Ramage stood at the quarterdeck rail wishing he could ignore his own rule, that no one was allowed to lean on it with his arms. Evening was the pleasantest part of the day with the sun sinking on the larboard beam and taking with it the heat and glare of the Tropics that eventually seemed to bake and dazzle you into impatience sabotaged by listlessness. Each day the wind had veered a little more. As they left Barbados the Trade winds had blown briskly from the east, with never a touch of north in them, as though to emphasize what many sailors had long suspected, that the old geographers had been teasing when they called them the "North East" trades. Anyway, they had left the islands behind, islands which for the Yorkes and for Ramage had been or become part of life - Grenada, St Vincent, St Lucia and the Pitons, the almost unbelievable matching pair of sugarloaf hills which Nature had dumped on the southwestern corner . . . Martinique, Dominica with its cloak of thick cloud and heavy rain which made it a favourite island for the Spanish plate fleets to make a landfall if they were short of water . . . Guadeloupe which looked on the chart like the two wings of a butterfly, Antigua, parched and mosquito-ridden, then the tiny island of St Barts, and St Martin, the island split between the Dutch who owned the southern half (and called it Sint Maarten, reminding Ramage of a lamb bleating) and the French. Then low-lying Anguilla and beyond Sombrero, a barren rock which seemed to guard the entrance to this wide channel joining the Atlantic to the Caribbean.

From there the convoy had really started its long voyage across the Atlantic and Ramage was thankful their luck had held: the wind had veered to the southeast a day past Sombrero and then held steady for a week so that they were able to steer for Bermuda.

Within a hundred miles of the collection of reefs, wrecks and legends of what used to be called Somers' Island, after its former owner, Sir George Somers, but now more generally known as Bermuda (after the Spaniard who discovered it, Bermudez), the wind had begun to haul round to the southwest and was now starting them off on the great sweep which should carry them into the Chops of the Channel.

Please, Ramage said in silent prayer, do not let it head us; the prospect of much beating to windward with these mules, tacking the whole convoy even once a day, made the patient Southwick blench. But now, as the latitude increased, they were abeam of Madeira away to the east across the Atlantic, while Savannah and Charleston were on the American coast to the west.