Crysknife

)
Name	crysknife
Appearance	crysknife
Damage vs. small	1d10
Damage vs. large	1d10
To-hit bonus	+3
Weapon skill	knife
Size	one-handed
Base price	100 zm (+10/positive enchant)
Weight	20
Material	mineral

A crysknife is a weapon that can only be produced by enchanting a worm tooth. It has a +3 to-hit bonus and does d10 damage against both small and large monsters, making it a nice choice for #twoweaponing. However, if it leaves your possession, including being put in to a container, it reverts back into a worm tooth (when fixed, this only happens 10% of the time).

Crysknives count as throwing weapons, so they get a to-hit bonus when thrown. Because of their reversion property, throwing them is typically not a good idea.

The crysknives and the concept of worm teeth are from Frank Herbert's science fiction novel Dune. See Wikipedia:Crysknife for an encyclopedia article, or w:c:Dune:Crysknife for a Dune-universe discussion of fixed and unfixed crysknives.

Encyclopedia entry

[The crysknife] is manufactured in two forms from teeth taken
from dead sandworms.  The two forms are "fixed" and "unfixed".
An unfixed knife requires proximity to a human body's
electrical field to prevent disintegration.  Fixed knives
are treated for storage.  All are about 20 centimeters long.
       [ Dune, by Frank Herbert ]