The man had fallen into the nullah, and the brute was then lying across the remains of his mangled body.

Seeing that the unfortunate fellow had been killed, the young inventor did not hesitate to discharge his pneumatic rifle.

The explosive bullet pierced the animal’s head.

It burst there, blowing its skull to pieces.

With the discharge the tiger bounded up into the air.

It landed ten feet away from its victim and rolled over, dead.

Every one rushed to Frank’s side.

“What have you shot?” asked the detective.

“A tiger. The beast just killed Martin Murdock.”

“Howly Heaven!” gasped Barney. “Our man—dead?”