H. L. Sayler, The Air Ship Boys : Or, the Quest of the Aztec Treasure
“ Then the sepulchral green light burst out in its funnel-like volume. It was coming back. It flared, went out, shot over the distant sands again like a searching' eye and then began moving straight up the river bank towards the wagon. Then came the earth rending explosion. Nor could the besieged boy know even then that Ned's well-aimed bomb had sent five Utes to their last sleep. When the sound of the explosion had died away and Elmer had recovered himself—for the shock had thrown him forward on the barricade—the whirr of the Cibola's motor was again far away. ”
