A dreary laugh answered the girls. "You must be joking," the voice said. "But if you are human, you will help me get out of this hole. I have been imprisoned for I don't know how long. Oh, it is a long story. Once I am out, I can explain everything to you. I promise not to harm you."
"Why do you wish to get out?" demanded Madge, trying to gain time until she could master her amazement.
The voice inside laughed less hoarsely. "Oh, I want to get out to breathe, to get away from this beastly hole and to attend to my own affairs. I could go on giving you reasons all night. But please hurry. Batter down the door! I don't see how the house has ever happened to be left unguarded so long. You are young boys, I suppose. Your voices sound like it. If you'll let me out, I'll do anything in the world for you," continued the prisoner, "only, make haste!"
"What shall we do?" whispered Phil.
"I don't know," returned Madge. "I am afraid there is a crazy person shut up in this house. Perhaps the men you saw were his keepers."
"But he talks as though he were sane," argued Phil.
"Crazy people often do," retorted Madge. "I've read that!"
"Madge, let's open the door," entreated Phil. "The voice doesn't sound as if the man were crazy. Think how dreadful if some one is really shut up here on this deserted island against his will!"
Madge hesitated. "It will be dreadfully foolish of us, Phil, to open the door. There is no telling what trouble we may bring on ourselves."
"For the love of Heaven, please open the door. I swear to you that there is no reason in the world why I should be kept imprisoned here. If you will only help me to get away, I can prove it to you." This time the voice pleaded desperately.