The hundreds of onlookers on the launching platform cheered. Thousands more on the shore, too far away to see the bottle break or the slow movement of the hull, were alerted by the voices of those on the platform and cheered, too. Tugboats and steamers tooted in the river. On the train tracks behind the shed, a locomotive engineer tied down his whistle. And slowly, very slowly, the battleship began to pick up speed.

UNDER THE SHIP, the German’s shovel smashed Bell’s gun out of his hand and caromed off his shoulder. Bell was already thrown off balance by the falling timber. The shovel sent him pinwheeling.

The German jumped back to the wheelbarrow and plunged his hands into its gelatinous cargo, confirming what Bell had seen from the stairs. He had been shoveling tallow onto the ways not only to appear to be innocently performing his job but to expose what he had hidden under the tallow. With a glad cry he pulled out a tightly banded pack of dynamite sticks.

Bell leaped to his feet. He saw no fuse to detonate the explosive, no powdered string to light, which meant that the German must have rigged a percussion cap to detonate on contact when the saboteur smashed it against the cradle. The German’s face was churning into a mask of insane triumph as he ran at the cradle holding the dynamite aloft, and Isaac Bell recognized the cold-eyed fearlessness of a fanatic willing to die to set off his bomb.

With every shore and block removed, Michigan was balanced precariously as she started down the ways. An explosion would derail the cradle and spill the 16,000-ton battleship on its side, crushing the launching platform and sweeping hundreds to their deaths.

Bell tackled the German. He brought the man down. But the madness that propelled the German to fearlessly face death gave him the strength to wrest free from the detective. The slowly sliding ship still had not left the shed nor reached the water’s edge. The German stood up and ran full tilt at its cradle.

Bell had no idea where his Browning had fallen. His hat had disappeared and with it his derringer. He pulled his knife from his boot, propped erect on one knee, and threw it with a smooth overhand motion. The razor-sharp steel pieced the back of the German’s neck. He stopped in his tracks and reached back as if to swat a fly. Grievously wounded, he buckled at the knees. Yet he staggered toward the ship, raising his bomb. But Isaac Bell’s knife had cost him more than a few precious seconds. By stopping for an instant, he remained directly in the downward path of another falling timber. It hit the German squarely, crushing his head.