A sudden realization dawned on Harry, as he gazed at the girl’s eyes, and listened to her beseeching words. He knew now that she was speaking the truth.
The enemy was already on Death Island! Stokes had brought back more than empty sacks; he had transported a man from the mainland!
“I saw him from the woods,” explained Arlette. “Believe me, when I say that the man is here. He is powerful; he is superhuman — “
“Sh,” warned Harry. Rising, he helped the girl to her feet.
“I trust you,” he whispered. “I believe you, Arlette. I understand everything — now. You must help me.
“I am here to protect an old man — Professor Whitburn. He is alone in the house. Our enemy may be there now. Come!”
HE guided the girl to the door; and they entered the living room. The house was silent as a tomb. The ticking of the clock on the mantel was audible.
“Have you a revolver?” questioned Harry.
Arlette shook her head.
“My only thought was to warn you,” she whispered. “I found a canoe, after the motor boat had gone. Harry, I have been here two nights, watching across the lake.”