"Well, you're in the wrong bunk."
"Am I? Well, I must have made another mistake. My head can't be right," and with that the other came out and hastily went into the adjoining apartment.
For a moment Jack stood in the hall. He looked at the door that had closed behind the bandaged figure.
"There's something wrong," said Jack in a low voice. "How strange Mark acts! I wonder what can be the matter?"
CHAPTER XI
READY FOR THE MOON
There were busy times for the moon-voyagers the next day. They were up early, for at the last moment many little details needed to be settled. The Cardite motor had been thoroughly repaired, for the damage caused by the unknown enemy had done no permanent harm.
When the injured one appeared the bandage on his head seemed larger than ever, and his features were almost hidden. He still wore his arm in a sling.
"Well, how do you feel?" asked Jack, looking narrowly at the figure. He could not get rid of a suspicion that something was wrong with Mark.
"Oh, I'm feeling pretty fair," was the mumbled answer. "I didn't sleep much, though."