Verto Fabrica Nox

The Verto Fabrica Nox potion is a Necromancy potion that was invented by the Master's first apprentice, Jaddakh. The potion goes against all the regular ideals of Necromancy, as Necromancy is manipulation of the undead, and the Verto Fabica Nox revives the dead into free life.

Process
Not much is known about how to make the Verto Fabrica Nox, except that it takes five days of tedious tending-to. The only known ingredieants are 3 extremely rare herbs: Xeftun, heglreb, and kopoushké.

Effects
The Verto Fabrica Nox is the only known potion that can revive a corpse into free life.

Side Effects
Apparently, if not mixed correctly, the potion can turn the drinker into a frog and unicorn hybrid creature, and if it is drunk by the living, death ensues, as seen when Denulth's tracking dogs died after drinking it in Revival's Road.

Volume 2
The Verto Fabrica Nox was used as a plot device frequently in Volume 2.
 * Stories of Hemenster (mentioned only)
 * A Twist in the Plan (mentioned only)
 * Revival's Road (first appearance)
 * Atra Nox