“Can you get your head through?”
“No; too small. Come and look.”
Fred made way for his companion, and, while he was peering through, the other amused himself by feeling the flat surface which stopped farther progress, and soon made out that there was a wall of rugged stone, built up evidently to stop the entrance; and this was matted together with ivy strands and roots which had forced their way in.
“Yes,” said Scarlett, at last, as he drew away; “this is the entrance, and now we’ve got to find it from outside.”
“Yes; but how?”
“Oh, we shall soon find it. Get the boat, and hunt all along till we find a place that has been built like a wall, and then search for this hole.”
“And how about the ivy all over it?”
Scarlett was silent for a while.
“I had forgotten all about the ivy,” he said.
“If we could tell about where it was, I dare say we could soon find it.”