Jim took it. "H'm! Invisible ink, and it's had a fine washing."
"But maybe it is waterproof."
"Maybe it is. Anyhow, Miss Sherlock, we'll show it to Jones and see what he says."
CHAPTER XX
"What I want now," said Braine, as he paced the living-room of the apartment of the countess, "is revenge. I've been checkmated enough, Olga; they're playing with us."
"That is nothing new," she replied, shrugging. "At the beginning I warned you. I never liked this affair after the first two or three failures. But you would have your way. You wanted revenge at that early date; but I can not see that you've gone forward. Has it ever occurred to you that the organization may be getting tired, too? They depend solely upon your invention, and each time your invention has resulted in touching nothing but zero."
"Thanks!"
"Oh, I'm not chiding you. I've failed, too."
"Are you turning against me?" he demanded bitterly.