“Perhaps some one is following us,” said Du Boise.
“Eh?” exclaimed Duncan, also glancing round. “I don’t see anybody. There’s no one behind us.”
“Perhaps there is,” said Hal. “Maybe you can’t see him even though he is there.”
“What do you mean? Who do you think is following us?”
“A ghost,” was the whispered answer. “I don’t dare to look round, fellows, but I can feel it. It’s right at our heels.”
“Oh, rats!” sneered Lynch, forcing a hoarse laugh. “If you believe in ghosts, you’re a big fool, Du Boise. There are no such things. I’m not the least bit superstitious myself.”
“Aren’t you?”
“No.”
“Not a bit?”
“Not a bit.”