History of "Salvation's Edge" Lore Book Unlocks

Unlock the "Salvation's Edge" lore book, The Rubicon, in the Salvation's Edge Raid. Entries are the thoughts of the Witness's Dissenters. Part of the Iconoclast seal triumphs and requires The Final Shape.

== How to complete ==

Eight entries are found in two ways.

• Calcified apples (5). They are located: between encounters one and two in a lit room with an hourglass wall; after encounter two among the statues in front of a large central figure; on rafters before encounter three near the monolith entryway; on a darker platform after encounter four during the ascent; and on the opposite side of a circular wall structure near encounter four. Each gives a lore tab and triumph progress.
• Raid mod puzzle (3). The final three require the Deepsight resonance raid mod puzzle, using the shapes in column 3 of the Deepsight symbols and ignoring specific shapes each puzzle. Once both hidden conductors are locked with the right resonance, a chest spawns with an entry after the final encounter. This part is on the weekly lockout, so it spans several weeks.

The Rubicon has entries named Acheron, Styx, Phlegethon, Lethe and Eunoe.