Found 4 books 
[en] Infernal Bones (Elemental Dungeon #2) - A Dungeon Core LitRPG Portal Books
[en] Hallowed Bones (Elemental Dungeon #3) Portal Books
[en] Bone Dungeon (Elemental Dungeon #1) - A Dungeon Core LitRPG Portal Books
![[Elemental Dungeon 01] • Bone Dungeon](/cover/n43Mm3E9Tb0uEU8H/small/[Elemental%20Dungeon%2001]%20%e2%80%a2%20Bone%20Dungeon.jpg)
[en] [Elemental Dungeon 01] • Bone Dungeon Portal Books