and cried:

"Well, my dear Sainclair,--have you read it?"

"The Glandier crime?"

"Yes; The Yellow Room!--What do you think of it?"

"I think that it must have been the Devil or the Bete du Bon Dieu
that committed the crime."

"Be serious!"

"Well, I don't much believe in murderers* who make their escape
through walls of solid brick. I think Daddy Jacques did wrong to
leave behind him the weapon with which the crime was committed and,
as he occupied the attic immediately above Mademoiselle Stangerson's
room, the builder's job ordered by the examining magistrate will
give us the key of the enigma and it will not be long before we
learn by what natural trap, or by what secret door, the old fellow
was able to slip in and out, and return immediately to the laboratory
to Monsieur Stangerson, without his absence being noticed. That, of
course, is only an hypothesis."

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*Although the original English translation often uses the words
"murder" and "murderer," the reader may substitute "attack" and
"attacker" since no murder is actually committed.
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