The expression on Manton's face was ghastly. "I didn't send down any can to you, Wagnalls," he insisted.

"It was your writing, sir!"

Kennedy rose. "What did you do with orders like that, such as the one you claim came with the can of undeveloped negative?"

"Put them on the spindle on that table in the vault."

"Wet your handkerchief and come show me."

When they returned Kennedy had the spindle in his hand, the charred papers still in place. This was one of the items preserved in part by the chemical spray through the ventilating opening above.

"Can you point out which one it is?" Kennedy asked.

"Let's see!" Wagnalls scratched his head. "Next to the top," he replied, in a moment. "Miss Lamar's death upset everything. Only one order came down after that."

With extreme care Kennedy took his knife and lifted the ashy flakes of the top order. "Get me some collodion, somebody!" he exclaimed.

Wagnalls jumped up and hurried off.