Hi DBPi3!
Thank you so much for enjoying Let the Dead Rise! I am glad to hear the read has been fun for you. TSBH Stands for “The Step Below Hell.” Before I elaborate let me make this easier for you and everyone else who may be reading this reply:
https://itch.io/c/5016701/giga-satan-collection
This collection was made by Tom Bloom, creator of Maleghast. It includes content of the Core Game, Games for Freaks (which includes an additional facrion Tom has made), and three homebrewed expansion books colloquially known as “the big 3” on the unofficial maleghast discord server. My book is one on there but so are two others! Check em out and good luck on your ghoul slaying journeys. Dont hesitate to ask any more questions if you have them :D Take care!