Lupin at once looked for the plan of the donjon-keep.
"That's it," he said. "Above the ground were three stories, which have been razed, and below the ground, dug out of the rock, two stories, one of which was blocked up by the rubbish, while the other... There, that's where our friend Daubrecq lies. The name is significant: the torture-chamber... Poor, dear friend!... Between the staircase and the torture-chamber, two doors. Between those two doors, a recess in which the three brothers obviously sit, gun in hand."
"So it is impossible for you to get in that way without being seen."
"Impossible... unless I come from above, by the story that has fallen in, and look for a means of entrance through the ceiling... But that is very risky... "
He continued to turn the pages of the book. Clar
