"When the leopard was found, with a spear in its side——"

"Evidently done after death by a wanderin' cad of a native," interposed Bones hastily.

"Be quiet, Bones," commanded the girl, and Bones shrugged his shoulders and obeyed.

"When the leopard was found," continued Hamilton, "he was certainly beyond human aid, and though no bullet mark was discovered, Bones conclusively proved——"

"One moment, dear old officer," interrupted Bones. He had seen out of the tail of his eye a majestic figure crossing the square.

"Will you allow me to produce scientific an' expert evidence?"

Hamilton assented gravely, and Bones went to the door of the orderly room and roared a name.

"I shall produce," he said quietly, but firmly, "the evidence of one who enjoyed the confidence of dear old Professor What's-his-name, the eminent thigumy-ologist. Oh, Ali!"

Ali Abid, a solemn figure, salaamed in the doorway.

Not for nothing had he been factotum to a great bacteriologist before the demise of his master had driven him to service with a lieutenant of Houssas. His vocabulary smelt of the laboratory, his English was pure, undefiled, and unusual.