Once more the passage sloped - but now up.

The trail led him into a narrow, unlit passage, never meant for human use, sloping steeply down.

The passage sloped upward and Tom guessed that it led into the mountains.

Once again patches of violet light glimmered over their heads as the passage narrowed and sloped downward.

The passage sloped downward gradually for another fifty meters to end in still another set of doors.

They followed its course for a few yards, when the passage took a turn, and sloped steeply into the heart of the hill.

The passage sloped upwards and was obviously leading to the building on the cliff.

The passage sloped downward, and at the base theie was water.

This passage sloped upward, and the air felt warmer.

The passage sloped sharply downward for a time, and it was very narrow.