A pretty simple and straightforward solo adventure for the Basic version of D&D the story is pretty much what it says on the tin, you go to a Castle, shaped like a lion where there is a ghost! 

Designed in a similar way to XSOLO: Lathan’s Gold, it also uses battle tables and so forth, but it is considerably simpler, as it befits the Basic version of the game. Very much a dungeon crawl with some survival mechanisms attached to it, It is, however, replayable by using the several pre-rolled characters included in the module, which will give you different experiences as you play through.

These solo adventures do feel a bit like relics of the past, from an age before immersive RPG computer games and they eventually went the same way as gamebooks, becoming more a source of nostalgia than something people actually play unprompted. However, this is also what gives them their particular charm.