The rain continued to come down, but it did not lightning and thunder, and the gentle patter-patter on the roof acted as a lullaby to the tired boys, everyone of whom went sound asleep in short order. Then Robert Menden and old Jacob dropped off, and all became quiet in the two rooms which the party occupied.
How long he slept Don did not know. But he awoke with a start and sat up, not knowing what had aroused him.
The room was in semi-darkness, the smoky lamp being turned down low. All of the others were sleeping soundly.
"Dick!" he cried softly, but there was no reply from his chum.
"Bob! Leander!" he continued after a long pause. Still no answer, saving a long snore from Bob, as he turned over restlessly.
"It's mighty queer what woke me up," thought the boy. He usually slept well.
He dropped back on the bed and tried to go to sleep again.
But the effort was a failure, and though he lay back with his eyes tightly closed, he was as wide-awake as before.
Then, of a sudden, although he heard nothing, a peculiar sensation stole over him, and he became convinced that some stranger was in the apartment!