"Well, we'd better telephone for the police an' let them do some of the worryin'."

Kirby stepped into the living-room, followed by his friend. He was about to reach for the receiver when an exclamation stopped him. Sanborn was standing before a small writing-desk, of which he had just let down the top. He had lifted idly a piece of blotting-paper and was gazing down at a sheet of paper with writing on it.

"Looky here, Kirby," he called.

In three strides Lane was beside him. His eyes, too, fastened on the sheet and found there the pot-hooks we have learned to associate with Chinese and Japanese chirography.

"Shows he'd been makin' himself at home," the champion rough rider said.

Lane picked up the paper. There were two or three sheets of the writing. "Might be a letter to his folks—or it might be—" His sentence flickered out. He was thinking. "I reckon I'll take this along with me an' have it translated, Cole."

He put the sheets in his pocket after he had folded them. "You never can tell. I might as well know what this Horikawa was thinkin' about first off as the police. There's just an off chance he might 'a' seen Rose that night an' tells about it here."

A moment later he was telephoning to the City Hall for the police.

There was the sound of a key in the outer door. It opened, and the janitor of the Paradox stood in the doorway.

"What you do here?" asked the little Japanese quickly.