underground chamber

WITH a prayer in his heart for the boy who lay dying in that strange underground chamber, the artist's father began.

On the 7th of May the princes entered the castle and were at once taken to the underground chamber where Franz lay dying.

But there was no such thing as a cave, an underground chamber, a brick arch or anything that looked like a hiding-place.

Then a faint light streamed into the dark underground chamber, fairly dazzling Marie's weak eyes.

We emerged from this underground chamber upon another thoroughfare, pursuing which we came upon an open, unused plot.