Much like the first Geomorph set which was for basic dungeons, this publication consists mainly of a bunch of pages of modular maps, but this time instead of looking like man made rooms they have wobbly edges that make them look like natural caves. There’s a page of instructions on how to use the Geomorphs, very similar to the one in the first set and a pretty fun example dungeon with encounters and so forth that you could use these maps for.