“All ready? Let her go!” With bowed heads they threw themselves against the little car, the rusty wheels began to screech; rapidly they gained headway, and soon were on the run.

They neared the smoke-hidden border of the clearing.

WITH A RUSH THEY DASHED INTO THE WALL OF SMOKE.

“Jump in, Jack!” cried Alex. Jack sprang over the tail-board and threw himself flat on his face, and with a rush they dashed into the wall of smoke.

Rumbling and screeching, the car sped onward. Alex began to feel the heat. Suddenly it swept over them like the breath of a furnace, and there came a mighty roar.

They were in the midst of the flames.

“Are you all right, Alex?” cried Jack.