“That ought to mean something to me,” he mumbled, “but it doesn’t; not a thing in the world.”

From a box in the corner he dragged a desk telephone, the one he had salvaged from the Zoo.

“This,” he said, “would tell a story if only it could talk. And why can’t you?” He shook his fist at the instrument. “What’s a telephone for if not for talking?”

Since the instrument did not respond, for the twentieth time Johnny unwound its wires and sat there staring at them. There was the usual pair of rather heavily insulated wires and a second pair of lighter ones, about twenty feet long.

“I ought to know what those second wires are for,” he said again, “but I don’t. I told the Chief of Detectives about it, and he laughed at me and said: ‘Do you think there’s someone with a tongue hot enough to set fire to a house just by talking over the telephone? There’s some hot ones, but not as hot as that!’ He laughed at his own joke, then saw me politely out of the room, thinking all the time, I don’t doubt, that I was a young nut with a cracked head. So, old telephone, if your secret is to be revealed you’ll have to tell it, or I’ll be obliged to discover it.”

Putting the telephone back in the box, he took the jewel case from beneath his pillow. As he saw the jewels in the light of day he was more sure than ever that they were genuine.

“I fancy,” he mused, “that the Chief of Detectives will be a trifle more interested in this than in my telephone, though in my estimation it’s not half as important. But of course there’s sure to be a reward. I mustn’t forget that. It’s to be for Ben Zook.”

The Chief of Detectives was interested, both interested and surprised. He set his best clerk working on the record of stolen diamonds. In less than five minutes the clerk had the record before him.

“These diamonds,” he said, looking hard at Johnny, “were stolen from Barker’s on Madison Street two weeks ago last night. The value is four thousand dollars.”

“And the reward?” said Johnny calmly.