“It’s queer,” said Evans, when they had advanced only a few steps, “but my arms ache still with that paddling.”

“Curse it!” he said.  “But they ache!  I must rest.”

They let the coat down.  Evans’ face was white, and little drops of sweat stood out upon his forehead.  “It’s stuffy, somehow, in this forest.”

Then with an abrupt transition to unreasonable anger:  “What is the good of waiting here all the day?  Lend a hand, I say!  You have done nothing but moon since we saw the dead Chinaman.”

Hooker was looking steadfastly at his companion’s face.  He helped raise the coat bearing the ingots, and they went forward perhaps a hundred yards in silence.  Evans began to breathe heavily.  “Can’t you speak?” he said.

“What’s the matter with you?” said Hooker.

Evans stumbled, and then with a sudden curse flung the coat from him.  He stood for a moment staring at Hooker, and then with a groan clutched at his own throat.

“Don’t come near me,” he said, and went and leant against a tree.  Then in a steadier voice, “I’ll be better in a minute.”

Presently his grip upon the trunk loosened, and he slipped slowly down the stem of the tree until he was a crumpled heap at its foot.  His hands were clenched convulsively.  His face became distorted with pain.  Hooker approached him.

“Don’t touch me!  Don’t touch me!” said Evans in a stifled voice.  “Put the gold back on the coat.”

“Can’t I do anything for you?” said Hooker.

“Put the gold back on the coat.”

As Hooker handled the ingots he felt a little prick on the ball of his thumb.  He looked at his hand and saw a slender thorn, perhaps two inches in length.

Evans gave an inarticulate cry and rolled over.

Hooker’s jaw dropped.  He stared at the thorn for a moment with dilated eyes.  Then he looked at Evans, who was now crumpled together on the ground, his back bending and straitening spasmodically.  Then he looked through the pillars of the trees and net-work of creeper stems, to where in the dim grey shadow the blue-clad body of the Chinaman was still indistinctly visible.  He thought of the little dashes in the corner of the plan, and in a moment he understood.

“God help me!” he said.  For the thorns were similar to those the Dyaks poison and use in their blowing-tubes.  He understood now what Chang-hi’s assurance of the safety of his treasure meant.  He understood that grin now.

“Evans!” he cried.

But Evans was silent and motionless now, save for a horrible spasmodic twitching of his limbs.  A profound silence brooded over the forest.

Then Hooker began to suck furiously at the little pink spot on the ball of his thumb—­sucking for dear life.  Presently he felt a strange aching pain in his arms and shoulders, and his fingers seemed difficult to bend.  Then he knew that sucking was no good.

Abruptly he stopped, and sitting down by the pile of ingots, and resting his chin upon his hands and his elbows upon his knees, stared at the distorted but still stirring body of his companion.  Chang-hi’s grin came in his mind again.  The dull pain spread towards his throat and grew slowly in intensity.  Far above him a faint breeze stirred the greenery, and the white petals of some unknown flower came floating down through the gloom.