The ingredient Thorn Hook comes from the plant "Thorn Hook," found in Dementia caves. There are actually 2 varieties of this plant, both of which yield the same ingredient.
22 guaranteed samples can be found. The places with the highest numbers of samples are:
- 5 samples are in the Howling Halls, Congregation Chambers zone
- 3 samples are in Dulphumph gro-Urgash's House in Deepwallow
- 3 samples are in Erver Devani's House in Deepwallow
It can also be found randomly in Ahjazda's inventory and in some loot chests.
The places with the highest concentrations of Thorn Hook are: