Rick knew that his dark-haired pal was right, but inaction, even under ordinary circumstances, made him restless, and now that two staff scientists had mysteriously disappeared, his normal desire to keep things moving swiftly was augmented by fear for their safety.

The Spindrift Scientific Foundation, with headquarters on famed Spindrift Island off the New Jersey coast, was regarded by most people as a typical group of scientists, impersonal and efficient, who sometimes made important discoveries or got involved in scientific adventures. But the picture of the Foundation, given mostly through impersonal scientific publications, was wrong.

The scientific efficiency and purpose of Spindrift could not be denied. But what the public failed to appreciate was that the staff, headed by Rick Brant's scientist father, was more like a family than a corporation. The center of activity was the big Brant house and the adjoining laboratory on Spindrift Island. The scientists were not only colleagues, but close personal friends.

As a consequence, when the staff zoologist, Dr. Howard Shannon, and the staff archaeologist, Dr. Anthony Briotti, failed to turn up on schedule from an expedition to the Sulu Sea, the entire Foundation became personally concerned. All work stopped while the staff speculated on what might have happened, what course of action to take.

Rick Brant and his pal Scotty were particularly upset when the days passed and Hartson Brant failed to decide on a course of action. Rick knew, of course, that his father was proceeding logically, obtaining information by cable and phone from the Philippines, but he resented the passing days.

"I'm glad Rojas is here," Rick said. "That must mean Dad is making up his mind. And you know what I hope, don't you?"

"Same as I do. But don't hope too much. Maybe Dad will decide this is a job for professionals, and not for us."

Hartson Brant had returned only a few minutes ago from a hurried trip to New York. He had brought with him Colonel Felix Rojas of the Philippines Constabulary. The tall, slender officer was at present on duty with his country's United Nations delegation. He was an old friend, dating back to the adventure of The Golden Skull when Rick, Scotty, Chahda, and Tony Briotti had gone to the fabulous rice terraces of Ifugao.

The colonel was having a belated lunch with Dr. and Mrs. Brant, and Rick's father had indicated politely but firmly that the two boys were not to broach the subject of the missing scientists until the colonel had finished eating. Dr. Brant had promised to call them for the meeting which was to take place immediately after lunch. Both boys were so impatient for the meeting to begin that it seemed to them the others were taking an unduly long time to consume the meal.

"Rick, Scotty. Come on into the library."