He unlimbered the binoculars and glassed the area. He still saw no sign. Whatever had taken the pot shot at them had made its getaway.

He walked back to the tree where the arrow still stood out, its point driven deep into the bark. He grasped the shaft and wrenched the arrow free.

"You can come out now," he called to Sipar. "There's no one around."

The arrow was unbelievably crude. The unfeathered shaft looked as if it had been battered off to the proper length with a jagged stone. The arrowhead was unflaked flint picked up from some outcropping or dry creek bed, and it was awkwardly bound to the shaft with the tough but pliant inner bark of the hula-tree.

"You recognize this?" he asked Sipar.

The native took the arrow and examined it. "Not my tribe."

"Of course not your tribe. Yours wouldn't take a shot at us. Some other tribe, perhaps?"

"Very poor arrow."

"I know that. But it could kill you just as dead as if it were a good one. Do you recognize it?"

"No tribe made this arrow," Sipar declared.