- Sold by Old Tegrin in the Gentle Path for 000012000012 0 0.
- Sold by Varathorn in the Dalish Camp for 000012000012 0 0 (Only available after completing three main quests, may become unavailable depending on choices made during Nature of the Beast)
- Sold by Alarith in the Denerim Alienage for 000011000011 0 0. (Non-elven Wardens will have to complete Unrest in the Alienage [without accepting Caladrius' offer] before they can trade)
- Sold by Sandal in the Witch Hunt DLC for 000011500011 50 0.
This is one of the duplicable tomes, along with the tomes for talents, spells and stats. If you intend to take advantage of this exploit, make sure you keep (don't use) at least 2 of the available Tomes of this kind, either at the original merchant or in your inventory.