"Lost may be my grimoire, I still remember some of my greatest work. While I plan for my revenge against the accursed librarian that holds it hostage, I entrust to your proficient hands the conservation of this handful of flying pages. Some of those incantations are my own, but there lays a curated selection from other ‒ dare I say ‒ unwilling contributors, as well. Though I warn you, I will come back for them, and failing me means assured death.
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Lost Pages of the Mad Leper's Grimoire is an assortment of bizarre spells for 5E, some by the Mad Leper himself, others by the hand of various wizards of the multiverse such as Elminster, Tasha and Mordenkainen, as well as adaptation of older spells whose authors have long perished.
Ranging from the simple and ever reliable cantrip to the planar-reaching 9th-level dweomer, this short list of 27 spells builds upon the collection that Leprous Harry first started in his previous tome: Ravings of the Mad Leper.
This work contains useful incantations for all spellcasting classes, spans all 8 magic schools, and includes 4 new rituals."
(Author Summary)