There are six scenarios featuring Necronomicon spells:
The Problem with Dead Things - 'The Way of all Flesh'
Cave of the Serpent Lord - 'Serpent's Call'
The Crypt - 'Breath of Undying'
Sinister Spelunking - 'Cloak of the Abyss'
The Living Idol - 'Unspeakable Animation'
The Thing in the Well - 'Open Celestial Gate'
To begin with, we opted to keep the Necronomicon very flavourful and award spells directly related to the scenario in which they're found. In the future, we may introduce more generic 'fragments', which could be discovered and then assembled into a random Necronomicon spell with varying degrees of success. After all, you don't want to get these incantations wrong!