“Perhaps we can handle both,” said Old King Brady.

But the chief shook his head.

“I think not,” he said. “It is a case which will require the best efforts of a man, and could hardly be divided.”

“Let us hear it,” said Old King Brady, with interest.

“Certainly!” agreed the chief, as he turned to his notebook. “Here are the details.”

The chief glanced over his notes and then said:

“A mysterious disappearance. A beautiful young society lady and heiress, of Westchester, drops suddenly from sight. Not a clew to her whereabouts.

“Miss Evelyn Grimm, daughter of the late Theophilus Grimm, and heiress to a vast estate now held in trust by Napoleon Blood, her uncle, awaiting her coming of age, suddenly disappears. The uncle is frantic and has used every means to trace her.

“The only clew is a brief note of appointment, written in a masculine hand, with these words:

“‘Miss Grimm: I will be at the Union Square rendezvous at ten o’clock. Do not fail to meet me, for I have business of very great importance. D. B.’”