"I don't see any sail," said Jimmy, following.

The narrow passage ended in a round arch all fringed with ferns
and creepers. They passed through the arch into a deep, narrow
gully whose banks were of stones, moss-covered; and in the
crannies grew more ferns and long grasses. Trees growing on the
top of the bank arched across, and the sunlight came through in
changing patches of brightness, turning the gully to a roofed
corridor of goldy-green. The path, which was of greeny-grey
flagstones where heaps of leaves had drifted, sloped steeply down,
and at the end of it was another round arch, quite dark inside,
above which rose rocks and grass and bushes.

"It's like the outside of a railway tunnel," said James.

"It's the entrance to the enchanted castle," said Kathleen. "Let's
blow the horns."

"Dry up!" said Gerald. "The bold Captain, reproving the silly
chatter of his subordinates ,"

"I like that!" said Jimmy, indignant.

"I thought you would," resumed Gerald "of his subordinates, bade
them advance with caution and in silence, because after all there
might be somebody about, and the other arch might be an
ice-house or something dangerous.

"What?" asked Kathleen anxiously.