Bob hesitated. "Well, I'm not quite sure myself," he answered. Then his face brightened quickly. "Here's dad coming now—we'll ask him. It struck me kind o' sudden too."

Mart turned as a step sounded behind him, and his hand met that of Stephen Hollinger. The millionaire was dressed roughly in serge and yachting cap, for he was his own captain aboard the yacht. His strong, whimsical face lighted up in a smile at Mart's expression.

"So you got down, eh! Glad to see you. Bob told you about it yet?"

"I just got here," replied Mart. "If he wasn't joking, Mr. Hollinger—"

"Where's Tringanu, dad?" broke in Bob excitedly.

Captain Hollinger—for he assumed this title aboard the Seamew—looked at the two boys amusedly, then took each by an arm and propelled them toward the companionway.

"Come along to the cabin; I'll give you half an hour. You see, Mart, we've been so rushed that even Bob hasn't had time to get an explanation. I got doctor's orders two days ago to drop business and do it quick. So we came up from Pasadena, the yacht will be in commission in another day or so, and off we go to Tringanu!"

Five minutes later Mart Judson found himself at a big mahogany table, his chum opposite him, while the captain got charts from another cabin. The luxury about him was astonishing; mahogany furnishings, walls, bookcases, a talking machine and a piano, electric lights and fans. Everything that could add to comfort or convenience was there, and he was soon to find that the rest of the yacht was fitted up in like manner.

"Now," began Captain Hollinger, returning with his maps and charts, "maybe you know, Mart, that I'm something of a big game hunter, eh?"

"I should guess!" grinned Mart. Like everyone else in San Francisco he knew that Stephen Hollinger was an enthusiastic sportsman; indeed, mining and hunting were said to be his chief pleasures in life.