"Forward! Forward!" cried Tom. "Come on!"

And on they went, through the smoke and darkness, Ned flashing his electric torch which gave only a feeble glow as the battery was almost exhausted. On and on! Now they were through the stone gateway, now out in the long tunnel.

Behind them they could hear feet running, and several spears clattered to the stone floor. Lights flickered behind them.

"If only the river bed is dry!" gasped Tom. "We may yet escape. But if they've filled the channel--"

He did not dare think of what that would mean as he ran on, turning occasionally to fire, for he and the others had again reloaded their revolvers.

Chapter XXV The Escape--Conclusion

The noise behind our friends increased. There were shouts of rage, yells of anger at the escape of the prey. High above the other voices were the shrill war-cries of the head-hunters--the savages with their grewsome desires.

"Can--can we make it, Tom?" panted Ned.

They were almost at the river channel now, and in another instant they had reached it.