This item appears to be a small, square, wooden chest, 2? in
length along any side. The inside of the chest is lined with red velvet,
which has numerous soft, cushiony folds. Hidden between the
folds is a command word, inscribed on the velvet itself. If from 1-5
grains of sand are placed within the folds inside the box and the
command word is spoken, the chest will magically lock itself and will
not open again until the command word is spoken again.

During the time that the chest is locked, it will begin turning the
grains of sand into perfectly formed, non-magical pearls. For each
consecutive day that the box is left undisturbed, each pearl will
increase in value by about 3 gp. Thus, after a week, each pearl
would be worth about 20 gp; after a month, each would be worth
about 80-100 gp. If the box is left unopened for longer than one
year, there is a 1% cumulative chance per day thereafter that the
growing pearls will become misshapen and worthless.

Casting a dispel magick spell on the chest will not open it, but
successfully casting a knock spell against 14th-level magic will do so.
However, the pearls inside will immediately disintegrate and be
worthless. If the chest is ever broken, it will lose all of its magical
properties forever.

Experience Point Value: 1,500
Gold Piece Sale Value: 15,000