The Bone Cathedral
The Bone Cathedral is an island in Sanatarium. Black seas and endless fog. Skeleton towns, ghost ships and the dead who crew them. The end of every chart.
This region is for Captain's Subscription holders. Without one, the sea turns you back at its edge.
Creatures
| Monster | Level | Number | Where | Respawn | Drops |
|---|---|---|---|---|---|
 Wailing Ghost | 89 | 6 | (0, -56) | 45 s |   |
 Rot Elder | 93 | 6 | (30, -30) | 45 s |  |
 Grave Demon | 94 | 6 | (-26, -24) | 45 s |   |
Island boss: Lord Sanatar
Lord Sanatar, a level 100 boss with 27,000 health (attack 229, defence 75). It turns up every 4–8 minutes at one of 5 spots on the island, using its quake attack pattern. Worth 9,000 XP and 3,000–7,000 gold.
| Item | Quantity | Rarity | Chance | Roughly |
|---|---|---|---|---|
 Cursed Ring | 1 | Common | 30% | 1/3 |
| Grave Iron Cuirass | 1 | Uncommon | 15% | 1/7 |
| Soul Reaper Scythe | 1 | Uncommon | 10% | 1/10 |
Jumping puzzle: The Ossuary Stair
The Ossuary Stair: a bones climb of difficulty ★★★☆☆ up the island's landmark (80.25 m high). 41 platforms, 2 checkpoints. Some platforms move, spin or vanish on a timer: watch a cycle before you jump.
Start at (0, -66). The chest at the top holds 3,960 gold, 3,564 XP and Cursed Ring. If you fall, you restart at the last checkpoint you touched. Each chest can be opened once per character; clearing puzzles counts towards achievements.
Hidden places & landmarks
| Place | Type | Where | Reward | Notes |
|---|---|---|---|---|
| The Bone Cathedral Camp | Remote Settlement | (-36, -24) | 1 Dabloom | A camp on The Bone Cathedral. Whoever lives here does not want visitors. |
| The Bone Cathedral Heights | Landmark | (30, -52) | 1 Dabloom | The high ground of The Bone Cathedral. You can see the whole region from here. |
Gathering
Fishing: 4 spots (tier 5). See Fishing.
Mining: 4× Grave Iron Vein, 4× Soulstone Vein. See Mining.
Quests
| Quest | Kind | Task | Target | XP | Gold | Skill |
|---|---|---|---|---|---|---|
| Hunt: 6 Wailing Ghosts | Hunt | Defeat 6 Wailing Ghosts. | Wailing Ghost | 10,560 | 36 | Swordsmanship +15 |
| Hunt: 14 Wailing Ghosts | Hunt | Defeat 14 Wailing Ghosts. | Wailing Ghost | 24,640 | 84 | Swordsmanship +35 |
| Hunt: 6 Skull Wraiths | Hunt | Defeat 6 Skull Wraiths. | Skull Wraith | 10,560 | 36 | Swordsmanship +15 |
| Hunt: 14 Skull Wraiths | Hunt | Defeat 14 Skull Wraiths. | Skull Wraith | 24,640 | 84 | Swordsmanship +35 |
| Hunt: 6 Grave Demons | Hunt | Defeat 6 Grave Demons. | Grave Demon | 10,560 | 36 | Swordsmanship +15 |
| Hunt: 14 Grave Demons | Hunt | Defeat 14 Grave Demons. | Grave Demon | 24,640 | 84 | Swordsmanship +35 |
| Hunt: 6 Rot Mushnubs | Hunt | Defeat 6 Rot Mushnubs. |  Rot Mushnub | 10,560 | 36 | Swordsmanship +15 |
| Hunt: 14 Rot Mushnubs | Hunt | Defeat 14 Rot Mushnubs. | Rot Mushnub | 24,640 | 84 | Swordsmanship +35 |
Getting around
- Return to the ship → The Saltborne Sea