Both boys listened and heard a hideous laugh. Then came the words, repeated many times:
"I am dead! He is dead! Who will bury me? See the lights! I am dead. Beware of the mountain! He is dead! The mountain will kill you! See the lights! Who will bury me? Ha ha!" And then the strange voice died away in the distance.
"What on earth can it be?" gasped Whopper. His face was deadly pale.
"Don't ask me," answered Snap.
"What's up?" questioned Giant, who was a light sleeper, and the sound of his voice awoke the doctor's son. Soon he and the small youth were acquainted with what had occurred.
"Where did the voice go to?" asked Shep.
"It seemed to fade away in the air."
"Why didn't you take a shot at it?"
"How can you shoot something you don't see?" demanded Snap, half indignantly. "Just let me spot that ghost and I'll show you what I'll do!"
"Let us keep quiet," suggested Whopper. "Perhaps it will come back."