"There are two pieces of evidence I require to save Mr. Lexman
from very serious trouble," he said, "the first of these is the
letter which was burnt, as you know."

"Yes," said Kara.

T. X. leant across the desk.

"How did you know" he snapped.

"Somebody told me, I don't know who it was."

"That's not true," replied T. X.; "nobody knows except myself and
Mrs. Lexman."

"But my dear good fellow," said Kara, pulling on his gloves, "you
have already asked me whether I didn't burn the letter."

"I said envelope," said T. X., with a little laugh.

"And you were going to say something about the other clue?"

"The other is the revolver," said T. X.

"Mr. Lexman's revolver!" drawled the Greek.

"That we have," said T. X. shortly. "What we want is the weapon
which the Greek had when he threatened Mr. Lexman."