"It's impossible."
"I tell you what, sir," said Naball coolly, "if you don't tell, it means trouble for you and the other man."
"What other man?" asked Malton shakily.
"The man you got this note from."
Malton thought for a moment, and then apparently made up his mind.
"You saw I was taken aback?" he asked Naball curiously.
The detective nodded.
"It's because I'm sorry for what I have to tell you--the man I got the note from was Ezra Lazarus."
Naball jumped to his feet with a cry.
"The dead man's son?" he said.