Manuscript page: Superior Swallow

Manuscript page: Superior Swallow is an alchemy formula in that is needed to craft Superior Swallow.
It's a possible spawn at a random diagram location starting at level 17, or purchased from the following merchants:
* Gremist at Gedyneith
* Yolar at Gedyneith
* Countess Mignole during Open Sesame! 
* All alchemists and herbalists in Toussaint, except Pinastri 
pl:Stronica z manuskryptu: Wyśmienita Jaskółka
ru:Рецепт: Отличная Ласточка
Category:The Witcher 3 alchemy formulae