"Unless the fever which has set in should take an unfavourable turn. He is constitutionally strong."
"I know that."
The doctor looked at Harkaway in some surprise.
"You are a bit of a doctor, Mr. Harkaway?"
Jack smiled.
"A very small bit," he answered; "only I have known this man nearly all my life."
"Indeed!"
The doctor's manner invited confidence, and it was quite clear that his curiosity had been awakened.
Harkaway thought it over quickly and quietly, and he came to the conclusion that he could not do better than let the doctor participate in the secret.
"You are surprised that an old acquaintance of mine should be here on board my ship, lurking and skulking as a stowaway?"