"The rarer a disease is the madder it makes people who contract it," he said. "I should be the maddest man in Manhattan if I really did have Lamour's malady. But I haven't. There is only one malady afflicting me, and I am waiting for a suitable opportunity to tell you all about it, but—"

"Tell me now," she said, raising her eyes to his.

"Not now."

"To-night?"

"I hope so. I will if I can, Miss Hollis."

"But you must not fear to tell a physician about anything which troubles you, Mr. Carden."

"I'll remember that," he said thoughtfully, as they emerged from the Park and crossed to Madison Avenue.

A moment later he hailed a car and they both entered.