“That’s a good feature. But, speaking frankly, have you any idea of the identity of the person—man or woman—who attempted to kill Yvonne?” asked Howell.

“I have a suspicion—a pretty shrewd suspicion,” replied the little bristly-haired man.

His companion was silent.

“And you don’t offer to confide in me your suspicions—eh?”

“It is wiser to obtain proof before making any allegations,” answered The Sparrow, smiling.

“You will still protect Lisette?” Howell asked. “I agree that, like Yvonne, she has been of great use to us in many ways. Beauty and wit are always assets in our rather ticklish branch of commerce. Where is Lisette now?”

“At the moment, she’s in Madrid,” The Sparrow replied. “There is a little affair there—the jewels of a Belgian’s wife—a fellow who, successfully posing as a German during the occupation of Brussels, made a big fortune by profiteering in leather. They are in Madrid for six months, in order to escape unwelcome inquiries by the Government in Brussels. They have a villa just outside the city, and I have sent Lisette there with certain instructions.”

“Who is with her?”

“Nobody yet. Franklyn will go in due course.”

Howell’s thin lips relaxed into a curious smile.