This scroll contains the formulae for a series of witcher potions.
- The Book of the Swallow
- White Gull: hallucinogen and high quality alchemical base
Swallow: increases Vitality regeneration
Cat: enables night vision
Blizzard: increases reflexes in combat
Necrophage Oil: blade coating, increases damage caused to necrophages
- Entering the Outskirts, possibly from Triss, but automatically added to Geralt's inventory.
- Geralt can learn the Cat formula during the Prologue, from Triss.
- If he still doesn't know it by Act V, he can get Cat potions from the druids in the cave in the swamp in exchange for a gold silk scarf (golden kerchief). Once a potion is used, Geralt retains the recipe.
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