“Going back with us in the speed boat?” he asked.

“No-o, if you don’t mind,” she hesitated. “We’ve been together so long, the three of us, MacGregor, Johnny, and I, that I—I think we’d like to follow you back in the Krazy Kat.”

“O.K.,” Red agreed. “Kopkina, suppose you come with me. I want to thank you for what you’ve done for us. Now let’s get going.”

Already the Oriental ship that had never been welcome was slipping out into the night.

On the way back Johnny and Rusty spent most of their time studying the stars and the moon. Just what they read there only they will ever know.

The secret of the Shadow was found to be quite simple, as most secrets are. It was a long, low craft without deck, cabins, rails or riggings. Powered by large storage batteries, it was able to slip in close to shore, set a three-mile-long net at night and lift it in the morning. The fish were rushed to other motor-boats outside the three-mile zone and were then carried to the floating cannery.

After installing a gasoline motor, Blackie used the Shadow for sea patrol. No demand for the return of the craft was made. Needless to say, the duties of Blackie, MacGregor, Johnny and Lawrence were exceedingly light for the remainder of the season.

The small blue bear throve on fish-cleanings and other scraps. He was fat and friendly when at last the boys headed for Seward and Matanuska Valley. At Seward they left him in the care of a friend until they could come in a small truck and cart him home.

At the cabin in the valley Johnny and Lawrence were given an uproarious welcome.

One thing surprised them—the Professor was back. “I am waiting for Bill,” he explained.