They didn’t speak as they hurried along. He had to imagine that her mind was working through everything like a moving-picture reel. His certainly was. Drawing up all the details again, examining them, asking what each piece could mean, then flipping to the next.

Wondering, always wondering, where Jaeger fit into it.

The OB was officially closed for the night, but it wasn’t empty. It was never empty, especially not on the floor that the intelligence hive had taken over. The night shift was there, waiting for the new codes to come in shortly after midnight. And Hall was still there, pacing his office like a caged lion.

He charged out of his door as they drew near. “There you are. What did you find?”

They briefed him as succinctly as possible, Margot handing over the telegrams. The admiral’s lips pressed together as he blinked, taking it all in. “We have these in our files?”

Margot nodded. “And a few others besides.”

“Then let’s see what the others are, where they came from. See if that lends us any aid.”

Drake didn’t know what to look for or how to help as they pulled down box after box and riffled through them, so he just leaned into the threshold and set his mind toward prayer. The best possible use of his time just now anyway.

“Here they are.” Margot pulled out what was clearly a logbook, and Hall handed over a stack of papers. The other intercepts, he assumed, in the code in question.

She flipped page after page, ran a finger down the charts.

“Well?” Hall looked over her shoulder.

“All the ones our fellow had in the book originated in Berlin, which is no surprise. It looks like they were sent to a variety of locations, though. France. Spain. Ireland. Here.”

“He must have got around, whoever he is. What of the others?”

Margot checked the papers, flipped a few more pages in the log, and then looked up with bright eyes. “There are a few intercepts with reverse locations—originating here or the other places and sent to Berlin. And others from Berlin to South America, more to the Continent. But a few went to zeppelins.”

Drake straightened. “Does that mean zeppelins would carry the codebooks?”

Hall slapped a hand to his knee and stood up from where he’d crouched. “It’s likely.” His eyes met Drake’s.

Drake knew exactly what he was thinking. “A zeppelin just went down yesterday in France.” It had been part of the information he’d sorted that morning. He’d flagged it, because he always flagged it. Hall must have reviewed his flags already. “The French reported nothing salvageable from the wreckage.”