Torn-out page: Forktail decoction

Torn-out page: Forktail decoction is an alchemy formula in that is needed to craft forktail decoction.
It's a possible spawn at a random diagram location or purchased from the following merchants:
* Jonna in Rannvaig
* Yolar at Gedyneith
* All herbalists in Toussaint except Pinastri 
It can also be obtained by reading the book Death From Above, which however doesn't appear during gameplay.
ru:Вырванная страница: Отвар из вилохвоста
Category:The Witcher 3 alchemy formulae