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 had stood out from its fellows. As his interested glance passed over it he noticed that its door and windows were barred.

"To what purpose is that building dedicated?" he asked of Lu-don. "Who do you keep imprisoned there?"

"It is nothing," replied the high priest nervously, "there is no one there. The place is vacant. Once it was used but not now for many years," and he moved on toward the gateway which led back into the palace. Here he and the priests halted while Tarzan with Ko-tan and his warriors passed out from the sacred precincts of the temple grounds.

The one question which Tarzan would have asked he had feared to ask for he knew that in the hearts of many lay a suspicion as to his genuineness, but he determined that before he slept he would put the question to Ko-tan, either directly or indirectly—as to whether there was, or had been recently within the city of A-lur a female of the same race as his.

As their evening meal was being served to them in the banquet hall of Ko-tan's palace by a part of the army of black slaves upon whose shoulders fell the burden of all the heavy and menial tasks of the city, Tarzan noticed that there came to the eyes of one of the slaves what was apparently an expression of startled recognition, as he looked upon the ape-man for the first time in the