The Crystal Dagger, or if you wish to call it be its original name the "Sliverphial", is an ingenious weapon used for administering poisons, sleeping potions, or other liquids that must be injected into the victims blood. Though it can be used by physicians for giving medicine to their patients, this practice is much less common, as there is less money to be had in that trade. It is usually about half of a handspan long, and is thus perfect for concealment.
The Sliverphial consists of a crystal blade with a small chamber
inside, and a wooden handle of two pieces. The piece of wood that connects to
the crystal has a hole all of the way through it, beginning in the exact center
nearest the blade, and ending halfway between the center and the edge. The
quartz blade itself also has a hole, but this starts just shy of the tip of the
crystal, and ends in the center to connect with the hole in the middle piece of
the dagger. The second piece of the handle has a hole that can connect with the
hole in the first if it is rotated correctly, but in the closed position both
open onto wood. The other side of this hole is on the side of the handle to
allow air flow. There is a small shaft of wood connecting the pieces of handle,
and the blade is glued and sealed onto it.
Information provided by Stormcrow