Scotty followed, then Shannon. The lanky zoologist was halfway down when Rick felt the rope tighten with a jerk and he heard Shannon's choked cry of pain. Rick rechecked to be sure the rope was secure, then motioned to Briotti and the Filipino boy. "Go on. We've got to get down to him."

Scotty and Zircon, climbing back from below, reached Shannon's side before Rick and the others could get there. In a few moments the six were clustered together.

"A rock turned under me," Shannon explained. "I felt the bone snap in my leg. You'd better go on. You can send help back to me later."

"Nonsense," Zircon grated. "Boys, what can we use for a splint?"

Rick was already pulling arrows out of the quiver. "These are Dr. Shannon's. I'm sure he won't mind if we use them."

"You have my permission," Shannon said with a painful chuckle.

The blunt-headed arrows were quickly lashed into two bundles. Rick and Scotty shed their light jackets and Scotty's knife flashed in the faint starlight as he sliced them into padding. Rick took the extra bowstrings from the quiver and handed them to Zircon. The bowstrings would make ideal ties. Within a short time Shannon's leg was securely splinted and Zircon was giving instructions.

"Scotty, go untie the rope and bring it down. You and Rick will hold from above, while Tony and I carry Howard. You, Mr. Torres, will please stay directly in front of us to test the footing and warn us of loose stones."

"Of course, sir," the Filipino boy replied quickly.

Scotty returned from his climb with the rope coiled. He made several turns around Shannon's waist, pulled the rope up under his armpits, and secured it with a bowline.