Na versão 5E de Contos do Portal do Bocejo existe o módulo White Plume Mountain.
Na página 95, ele declara o conhecimento anterior de Keraptis, o Mago:
Thirteen hundred years ago, the wizard Keraptis was searching for a suitable haven where he could indulge his eccentricities without fear of interference. He visited White Plume Mountain, going closer than most dared to and discovered the system of old lava-tubes that riddle the cone and the underlying strata. With a little alteration, he thought, these would be perfect for his purposes. The area already had a bad reputation, and he could think of a few ways to make it worse. So he disappeared below White Plume Mountain and vanished from the knowledge of the surface world.
Existe mais Lore oficial da Wizards of the Coast, escritores de módulos ou autores aprovados em Keraptis the Wizard, ou isso é tudo o que existe?