Stones of Ys

Stones of Ys is an alchemy ingredient in .
They are the lumps of a mineral used by vodyanoi mages and priests, though they cannot be bought or sold to any merchant.
== Journal Entry source ==
* A Description of the Vodyanoi or the Fishpeople
* Physiologus
Category:Nigredo
Category:Rebis
Category:The Witcher ingredients
cs:Kameny z Ys
de:Stein von Ys
es:Piedras de Ys
fr:Pierre d'Ys
it:Pietre di Ys
lt:Ys akmenys
hu:Ys Kövei
pl:Kamienie z Ys
ru:Камни из Ис