But suspicion was easily excited.

Though David Glenney had been sent out of the way, his aunt remained at Frankfort; and an insolent readiness in distrusting German ladies seemed to run in the family.
Having arrived at these conclusions, she gave her mind again to the still unsettled question of the new lock to the medicine-chest.
Measuring the longest of the bottles (the bottle containing the antidote), she found that her dressing case was not high enough to hold it, while the chest was in the locksmith's workshop.

Her trunks, on the other hand, were only protected by very ordinary locks, and were too large to be removed to the safe keeping of the cupboard.

She must either leave the six bottles loose on the shelf or abandon the extra security of the new lock.
The one risk of taking the first of these two courses, was the risk of leaving the key again in the cupboard.

Was this likely to occur, after the fright she had already suffered?
The question was not really worth answering.