He and Gamay slipped out of Brimmer’s office and quickly made their way across the wide loom floor. Paul set the two-by-four against the wall, and they stepped out onto the fire escape, only to stop short.

The rickety old fire escape was trembling, and there was the tunk-tunk of ascending footfalls on the cast-iron steps. The Trouts ducked back inside, and Paul picked up the two-by-four he’d just left behind. They plastered themselves flat against a wall on either side of the door. He tightened his grip on the board.

Low male voices could be heard, then a quick exclamation of surprise. The men had found the smashed latch. Then the voices ceased.

The door opened slowly. A figure stepped inside, followed by another. There was a spark, as the lead man flicked on a cigarette lighter. Paul calculated that he would have a second to act and brought the two-by-four down on the head of the second figure. The man with the cigarette lighter turned at the thwack of wood smacking skull. He was holding a revolver in his other hand. Paul jammed him in the midsection with the end of the two-by-four, and followed up with a blow to the head as the man doubled over.

The Trouts dashed through the door, paused briefly to make sure nobody else was climbing the fire escape, then flew down the steps and raced to their vehicle. As they drove away from the mill, they passed two police cruisers speeding toward it, lights blinking but sirens silent.

Gamay caught her breath, and said, “Where’d you learn to swing a bat like Ted Williams?”

“The Woods Hole summer softball league. I played first base for the institution’s oceanography team. Strictly for fun. Didn’t even keep score.”

“Well, I’m going to put you down for 2 to 0, after that neat double play,” Gamay said.

“Thanks. I guess we’ve reached a dead end on the Dobbs logbook. . . . Literally,” Paul said.

Gamay pursed her lips in thought for a moment.

“Captain Dobbs wasn’t the only one who wrote down his memoirs,” she said.

“Caleb Nye?” he said. “All his records went up in flames.”

“Rachael Dobbs mentioned the diorama. Isn’t that a record of sorts?”

Suddenly energized, he said, “It’s worth a try.”

Paul pumped the SUV’s accelerator and headed across town to the Dobbs mansion.

Rachael Dobbs was saying good night to the cleaning crew that had cleared up after the jazz concert and was about to close down the building. She looked less frazzled than when they saw her earlier.

“I’m afraid you missed the concert,” she said. “You found Mr. Brimmer’s shop, I trust?”

“Yes, thank you,” Gamay said. “He couldn’t help us. But then Paul and I remembered the Nye diorama that you mentioned. Do you think it might be possible to see it?”