History of For Every Rose, a Thorn

For Every Rose, a Thorn is a lore book introduced in Season of the Drifter. Its entries combine letters from Shin Malphur with excerpts from the seventh Book of Sorrow annotated by Teben Grey. The ANGER entry explicitly labels itself as the 12th Understanding from that book. This is a lore collection, not a quest.

Sources

• For Every Rose, a Thorn — Destinypedia
• ANGER — Ishtar Collective
• A Shadow’s Worth — Ishtar Collective