This hit the lamp. Stern grabbed the shade and steadied it. Beatrice stooped and snatched up the thing from where it lay beside the table.

Only one glance Stern gave at it, as she held it up. A long reed stem he saw wrapped at its base with cotton fibers--a fish-bone point, firm-lashed--and on that point a dull red stain, a blotch of something dry and shiny.

“Blow-gun darts!” cried he. “Poisoned! They've seen the light--got our range! They're up there in the tree-tops--shooting at us!”

With one puff, the light was gone. By the wrist he seized Beatrice. He dragged her toward the front wall, off to one side, out of range.

“The flasks of Pulverite! Suppose a dart should hit one?” exclaimed the girl.

“That's so! Wait here--I'll get them!”

But she was there beside him as, in the thick dark, he cautiously felt for the deadly things and found them with a hand that dared not tremble. And though here, there, the little venom-stings whis-s-shed over them and past them, to shatter on the rear wall, she helped him bear the vials, all nine of them, to a place of safety in the left-hand front corner where by no possibility could they be struck.

Together then, quietly as wraiths, they stole into the next room; and there, from a window not as yet attacked, they spied out at the dark tree-tops that lay in dense masses almost brushing the walls.

“See? See there?” whispered Stern in the girl's ear. He pointed where, not ten yards away and below, a blacker shadow seemed to move along a hemlock branch. Forgotten now, his wounds. Forgotten his loss of blood, his fever and his weakness. The sight of that creeping stealthy attack nerved him with new vigor. And, even as the girl looked, Stern drew his revolver.

Speaking no further word, he laid the ugly barrel firm across the sill.