“No. I can avoid them until the last moment. The pass you had made for me will throw them off. By the time any realize what I am up to, it will be too late to stop me.”

“Do you fear that you will not escape with your life?”

“I would be amazed if I did. Fortunately, I have settled that question in my own mind. That is not what troubles me.”

“Then we are back to the same basic question, Hans. Would you have American warships sink German warships?”

“Maybe it is the waiting that is killing me. No matter where I go I hear them hitting the wedges. Like the ticking clock. Ticktock. Ticktock. Ticking for innocent men who don’t know yet that they will die. It’s driving me crazy-What is this?”

The spy was pushing money into his hand. He tried to jerk back. “I don’t want money.”

The spy seized his wrist in an astonishingly powerful grip. “Recreation. Find a girl. She’ll make the night go faster.” He stood up abruptly.

“Are you leaving?” Suddenly Hans did look afraid-afraid to be alone with his conscience.

“I’ll be nearby. I’ll be watching.” The spy smiled reassuringly and slapped him on the shoulder.

“Go find that girl. Enjoy the night. It will be morning before you know it.”

WAITERS SPORTING RED, WHITE, AND BLUE BOW TIES spread watercress sandwiches and iced wine in the dignitaries’ pavilion. Bartenders, who had been issued similarly patriotic garters for their sleeves, rolled kegs of beer and carts of hard-boiled eggs into the ship workers’ tents on the riverbank. A warm breeze drifted through the enormous shed that covered the shipway, sunlight filtered down from glass panels in the roof, and it appeared that half the population of Camden, New Jersey, had turned out to celebrate launching the battleship Michigan, whose 16,000 tons were balanced at the high end of a track of greased rails that slanted into the river.

The shed still resounded with steel banging on wood, but the pace of the hammering had slowed. The wedges had lifted the battleship off nearly all her building blocks. But for a last few under her keel and bilges, she rested on the cradle she would ride down the ways.

The ceremonial launching platform surrounding the ship’s steel bow was draped with red, white, and blue bunting. A champagne bottle, wrapped in crocheted mesh to keep glass from flying and beribboned in the colors of the flag, waited in a bowl of roses.

The battleship’s sponsor, the pretty, dark-haired girl who would christen her, stood by in a striped flannel walking dress and a wide-brimmed Merry Widow hat heaped with silk peonies. She was ignoring the fevered instructions of an Assistant Secretary of the Navy-her father-who was warning her not to hold back at the crucial moment but to “Whack her with all you’ve got the instant the ship starts to move or it’ll be too late.”

Her gaze was fixed on a tall, golden-haired detective in a white suit, whose restless eyes were looking everywhere but at her.

Isaac Bell had not slept in a bed since he arrived in Camden two days ago. He had originally intended to come down with Marion the night before the ceremony and dine in Philadelphia. But that was before the Philadelphia office had sent the urgent wire to New York. Disquieting rumors had begun to drift in concerning a mysterious German bent on disrupting the launch. Detectives assigned to the German immigrant community heard of a recent arrival who claimed to be from Bremen but spoke with a Rostock accent. He kept asking about finding work at New York Ship but had never applied to the company. Several hands had unaccountably lost the gate badges that identified them as employees.

This morning at dawn, Angelo Del Rossi, the frock-coated proprietor of the King Street dance hall where Alasdair MacDonald had been murdered, sought Bell out. He reported that a woman had come to him, distraught and frightened. A German who met the description of the man from Rostock-tall and fair, with troubled eyes-had confessed to the woman, who in turn had confessed to Del Rossi.

“She’s a part-time working girl, Isaac, if you know what I mean.”

“I’ve heard of such arrangements,” Bell assured him. “What exactly did she say?”

“This German she was with suddenly blurted out something to the effect that the innocent should not die. She asked what he meant. They had been drinking. He fell silent, then blurted some more, as drinkers will, saying that the cause was just, but the methods wrong. Again she asked what he meant. And he broke down and began to weep, and said-and this she claimed to quote exactly-‘The dreadnought will fall, but men will die.’ ”

“Do you believe her?”

“She had nothing to gain coming to me, except a clear conscience. She knows men who work in the yard. She doesn’t want them to be hurt. She was brave enough to confide in me.”

“I must speak with her,” said Bell.

“She won’t talk to you. She doesn’t see any difference between private detectives and cops, and she doesn’t like cops.”

Bell pulled a gold piece from inside his belt and handed it to the saloonkeeper. “No cop ever paid her twenty dollars to talk. Give this to her. Tell her I admire her bravery and that I will do nothing to endanger her.” He turned his gaze sharply on Del Rossi. “You do believe me, Angelo. Do you not?”

“Why do you think I came to you?” said Del Rossi. “I’ll see what I can do.”

“Is it enough money?”

“More than she clears in a week.”

Bell tossed him more gold. “Here’s another week. This is vitally important, Angelo. Thank you.”

Her name was Rose. She had offered no last name when Del Rossi arranged for them to meet in the back of his dance hall, and Bell asked for none. Bold and self-possessed, she repeated everything she had told Del Rossi. Bell kept her talking, probing gently, and she finally added that the German’s parting words, as he staggered from the private booth they had rented in a waterfront bar, were, “It will be done.”

“Would you recognize him if you saw him again?”

“I should think so.”

“How would you like to become a temporary employee of the Van Dorn Detective Agency?”

NOW SHE WAS CRUISING the shipyard in a summery white dress and a flowered hat, pretending to be the kid sister of two burly Van Dorn operatives disguised as celebrating steamfitters. A dozen more detectives were prowling the shipyard checking and rechecking the identities of all who were working near the Michigan, particularly the carpenters driving the wedges directly under the hull. These men were required to carry special red passes issued by Van Dorn-instead of New York Ship-in case spies had infiltrated the offices of the shipbuilding firm.

The runners who reported to Bell on the platform were chosen for their youthful appearance. Bell had ordered them to be attired like innocuous college boys, in boaters, summer suits, rounded collars, and neckties, so as not to unnecessarily frighten the throng that had come out to greet the new ship.

He had argued strongly for a postponement, but there was no question of calling the ceremony off. Too much was riding on the launch, Captain Falconer had explained, and every party involved would protest. New York Ship was proud to put Michigan in the water just ahead of Cramp’s Shipyard’s South Carolina, which was only weeks behind. The Navy wanted the hull immediately afloat to finish fitting her out. And no one in his cabinet dared inform President Roosevelt of any delay.

The ceremony was scheduled to start exactly at eleven. Captain Falconer had warned Bell that they would launch on time. In less than an hour the dreadnought would either slide uneventfully down the ways or the German saboteur would attack, wreaking a terrible toll on the innocent.

A Marine brass band started playing a Sousa medley, and the launching stand got crowded with hundreds of special guests invited to stand close enough to actually see the champagne bottle crack on the bow. Bell spotted the Secretary of the Interior, three senators, the governor of Michigan, and several members of President Roosevelt’s vigorous “Tennis Cabinet.”