Book of Skill
Grants one passive skill point when consumed, and is obtained from certain quests as a reward. Available on Normal, Cruel and Merciless.
Act 1
- From Tarkleigh as a reward for completing the quest, "The Dweller of the Deep"
- From Bestel as a reward for completing the quest, "The Marooned Mariner"
Act 2
- From Bestel as a reward for completing the quest, "The Way Forward"
Act 3
- From Hargan as a reward for completing the quest, "Victario's Secrets"
- From Grigor as a reward for completing the quest, "Piety's Pets"
Act 4
- From Tasuni as a reward for completing the quest, "An Indomitable Spirit"