idle jests, and perhaps wondered that Madame
de Groot could be frivolous and apparently lighthearted on so dismal a
topic, there had been really a hidden meaning in her words.

For several weeks past the prisoner had been brooding over a means of
escape. His wife, whose every thought was devoted to him, had often cast
her eyes on the great chest or trunk in which the books of Erpenius had
been conveyed between Loevestein and Gorcum for the use of the prisoner.
At first the trunk had been carefully opened and its contents examined
every time it entered or left the castle. As nothing had ever been found
in it save Hebrew, Greek, and Latin folios, uninviting enough to the
Commandant, that warrior had gradually ceased to inspect the chest very
closely, and had at last discontinued the practice altogether.

It had been kept for some weeks past in the prisoner's study. His wife
thought--although it was two finger breadths less than four feet in
length, and not very broad or deep in proportion--that it might be
possible for him to get into it. He was considerably above middle height,
but found that by curling himself up very closely he could just manage to
lie in it with the cover closed. Very secretly they had many times
rehearsed the scheme which had now taken possession of their minds, but
had not breathed a word of it to any one. He had lain in the chest with
the lid fastened, and with his wife sitting upon the top of it, two hours
at a time by the hour-glass. They had decided at last that the plan,
though fraught with danger, was not absolutely impossible, and they were
only waiting now for a favourable opportunity. The chance remark of the
child Cornelia settled the time for hazarding the adventure. By a strange
coincidence, too, the commandant of the fortress, Lieutenant Deventer,
had just been promoted to a captaincy, and was to go to Heusden to
receive his company. He left the castle for a brief absence that very
Sunday evening. As a precautionary measure, the trunk filled with books
had been sent to Gorcum and returned after the usual interval only a few
days before.

The maid-servant of the de Groots, a young girl of twenty, Elsje van
Houwening by name, quick, intelligent, devoted, and courageous, was now
taken into their confidence. The scheme was explained to her, and she was
asked if she were willing to take the chest under her charge with her
master in it, instead of the usual freight of books, and accompany it