Exacter Dunmire's «Expose The Hallowed Sentinels» quest in requires players to find the Book of Sin. Moreover, the Book of Sin is just one of eight quest items you must retrieve for the character to complete his mission. Nonetheless, once found, it is one less item to worry about and one step closer to completing the quest.
Finding the Book of Sin may be easier than beating 's Lightreaper boss. However, it is part of a pesky little task from Exacter Dunmire, who sends you on a wild goose chase across the world of Axiom and Umbral in search of specific items. His overarching goal is to expose the truth about the Hallowed Sentinels. You will need the Book of Sin to learn more about that lore and get some new armor.
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To find the Book of Sin in, you need to explore Pilgrim's Perch in the Umbral Realm. More specifically, start from the Vestige of Blind Agatha checkpoint and go through the tunnels. Continue on this path, past the enemies, until you reach the scaffoldings attached to the cliff's side. Keep pushing past the enemies, jump across the scaffoldings, and continue straight until you reach a dead end with an enemy and a ladder to your left. Drop down this ladder.
Right after this ladder will be a second one you need to take, but make sure you're in the Umbral Realm before you take it. If you are not in the Umbral Realm when you take the second ladder, you will fall to your death. Move across the platforms to the other corner and take the ladder up. When you reach the top of this later, turn right and climb the second ladder.
If you take it straight away, an enemy is hiding and will shoot you off the second ladder with a ranged
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