A crystal ball is for geomancers,
who scry out hidden deposits of gems
for the miners to find,
and who are paid handsomely enough
to afford such an artifact.
The fisherman's daughter is poor.
At night she wrings the bodies
of squid and octopi,
squeezing their rubbery skin
until her bowl fills with ink.
Dark as the sea at night,
it shows her where the fish school
and where the reef grows close to the surface.
She tells her father and uncles,
and each day they come home safe with full hulls.
Someday, she thinks,
it would be a grand adventure
to cut open the corpse of a storm-killed kraken --
which after all is much like a squid or an octopus --
and see what she could scry in its ink.
You can now read the sequels:
"The Ocean of Her Eyes"