Danger in the Dark - ZseZse

CHAPTER XII.
The shrewdness oC insanity-The poisoned chalice-s-Dupiu's leap
from a window - The Lunatic escapes from the convent - Her
singular adventure-Conspirators punished-The haunted cell.
WE return again to the convent.
The insanity of Isadora Norwood was peculiar: her
reflections, at times, seemed profound, and her perception
remarkably acute; yet she had frequent spells
of raving madness, at which times, she was apt to
make disclosures that gave no little uneasiness to
certain priests, who habitually visited the convent.
Dupin was particularly solicitous that she might have
no chance of uttering things she ought not, in the
presence of Anna Maria Gerard and Arabella May.
His continual fears upon that subject, led him finally,
to resolve on giving her a quietus. To carry out his
design, it was necessary for him to have the assistance
of the Abbess; and well knowing that she would
readily enter into his designs, and might safely be
trusted, he sought an opportunity of secretly disclosing
his intentions to her, and concerting a plan for
administering the poison. The maniac's suspicions
being aroused, by what she had observed of the maneuverinz
of Dupin she one evening sliIy stole into
b' ( 145 )