From publisher blurb:
NOTE: This adventure uses terms and game mechanics created for the Witchcraft: Magic of Hereva supplement. In that supplement you can find rules to to create characters from the class Witch of Hereva, inspired by the Pepper&Carrot comic web by David Revoy. To use this adventure you will need that supplement.
Forest of Fairies is an adventure compatible with any system based on the 5th edition of the SRD of the world’s most popular role-playing game. In this adventure, players will meet two villages of fairies fighting against each other, on an island that floats on top a giant dinosaur in the middle of the sea. Will defend the colosal creature from another monster and will save both village taking them back to their home forest.