The geographer was no longer to be seen, as he was hidden by the thick foliage. It was necessary to call him.

"Paganel! Paganel!" cried Glenarvan.

"Present!" answered a voice which seemed to come to them from the sky.

"Where are you?"

"In my tower."

"What are you doing?"

"Surveying the wide horizon."

"Can you come down a moment?"

"Do you need me?"