_______ _________ __
| | | | | |
| | Mlle. | | Mlle. |___ ___ ___| Mr.
Lumber |Strangerson's Strangerson's|___ ___ ___|Strangerson's
| Room | Sitting | | Bed Room |___ ___ ___| Room
| | Room | |__ __ _____|stair-case |
| | |bath|anteroom| |
|_____ ______|____ ______|___|____|___ ___| |______ _____
|
2 ------ Right Gallery Right Wing--------- 3 Right Gallery
Left Wing
|_________ _____ _________ ______ _______ __ __ __ _________ _____

|Roulet- | W G |
|tabille's | I A | Right Wing Left Wing
| Room N L of the
|_________ | D L | Chateau
Frederic | I E |
|Larsan's N R
| Room | G Y |
| |
|____ ____ | _1_ |
. 5 .
. 6 .
. .
. . .

Rouletabille motioned me to follow him up a magnificent flight of stairs
ending in a landing on the first floor. From this landing one could pass
to the right or left wing of the chateau by a gallery opening from it.
This gallery, high and wide, extended along the whole length of the
building and was lit from the front of the chateau facing the north.
The rooms, the windows of which looked to the south, opened out of the
gallery. Professor Stangerson inhabited the left wing of the building.
Mademoiselle Stangerson had her apartment in the right wing.

We entered the gallery to the right. A narrow carpet, laid on the
waxed oaken floor, which shone like glass, deadened the sound of our
footsteps. Rouletabille asked me, in a low tone, to walk carefully, as
we were passing the door of Mademoiselle Stangerson's apartment. This
consisted of a bed-room, an ante-room, a small bath-room, a boudoir,
and a drawing-room. One could pass from one to another of these rooms
without having to go by way of the gallery. The gallery continued
straight to the western end of the building, where it was lit by a high
window (window 2 on the plan). At about two-thirds of its length this
gallery, at a right angle, joined another gallery following the course
of the right wing.

The better to follow this narrative, we shall call the gallery leading
from the stairs to the eastern window, the "right" gallery an