headway, still it did not seem to be abating. Already the framework of
that end of the bridge was outlined like the figure in a set piece of
fireworks. They could hear the crackling of the flames, and the wooden
tunnel was becoming filled with smoke. Tommy was coughing, to remind
her companions that they were in need of other quarters.

"I don't think I would cut the ends off," suggested Harriet. "Saw them
nearly through, then cut the opposite ends. Otherwise you may leave
the animals dangling in the air with no means of helping them out."

Janus nodded approvingly at Harriet's suggestion.

"I reckon you're right," he agreed. "Jim, tackle the other end. We'll
let this near horse down first and see how he makes out. If it works,
we'll drop the other fellow in the same way."

A warning snapping sound was heard.

"Stand clear!" bellowed Janus.

The girls sprang back, and just in time. Pieces of plank shot up into
the air, one striking the bridge roof with a crash. Then the near
horse, with a neigh of fear, disappeared into the black water below
them. They heard a loud splash. Harriet, leaning over, peered into
the river.

"He's swimming. I can hear him," she cried joyously. "Isn't that fine
that you thought of that, Mr. Grubb?" she exclaimed, turning a flushed
face to the guide.