“No need for usum vines,” declared the Malay. “Salloo know a path to top.”

Telling them to remain where they were, the faithful fellow set off on another scouting expedition. His kriss glittered menacingly in the moonlight as he went on, trying to keep in the shadow of the cliff. Arrived at the path he knew of, he glided noiselessly up it, although it was a steep and tortuous one, and soon was at the top of the cliff. Through the gloom he made out a solitary figure sitting on a rock far removed from the campfire, about which the rest were gathered. The Malay guessed it was a sentry, although the fellow was not keeping a very careful watch and appeared to be half asleep.

“Me fixee you one minute,” grinned the Malay to himself.

He cast himself on his stomach in the long grass that grew on the cliff-top and began worming his way round the sentry so as to approach him from the rear. He scarcely made a sound as he moved with wonderful rapidity.

The sentry appeared to shake off his drowsiness suddenly and rose to his feet just as Salloo was within a few inches of him. But he left his rifle leaning against the rock on which he had been seated. Instantly Salloo leaped from the grass and the next instant the kriss was at the thunderstruck sentry’s throat.

“You no speak or me killee,” grated out the Malay, and one glance convinced the sentry that Salloo would carry out his threat.

Salloo stooped and picking up a small pebble cast it over the cliff. It fell almost at the feet of Captain Sparhawk and Billy, who were anxiously on the look-out for this signal, which had been prearranged.

“Forward,” ordered Captain Sparhawk, who was in the lead. Next came Billy, then Muldoon and last the natives, some of whom had spears, and others the peculiar blow-pipes used by the Papuans to shoot poisoned darts.

The advance was made in silence, and at the top of the cliff they found Salloo waiting for them. He was garmentless, having used his single cloak to tie up the sentry with. Grass stuffed in the man’s mouth had effectually gagged him.

“Good for you, Salloo,” said the captain approvingly, to which the native replied with a grin.