Welcome to the written guide for the ESO Red Petal Bastion Dungeon which includes Veteran, Hard Modes and all the Secret bosses.
This guide will cover all the mechanics for the dungeons along with pictures for important aspects of completing the dungeon. This was added in ESO Update 31 and comes with very good gear to collect and is one of the most challenging dungeons to date!

Table of Contents
Video Guide
About This Dungeon
The Dread Cellar dungeon contains 3 main bosses and 3 secret bosses. Each main boss has a hard mode that you can activate which you’ll need to complete if your goal is to finish all the hard modes in the dungeons. This dungeon is compromised of three secret bosses each granting a special buff that remains with you throughout the instants. It’s highly recommended that you do all three secret bosses if your goal is to complete all hard modes, as they are extremely challenging without the buffs.
Available buffs
Thunder Caller (Light Armor)
Grisly Gourmet (Medium Armor)
Silver Rose Vigil (Heavy Armor)
Prior Thierric
Secret Bosses
Wraith of Crows
Spider Daedra
Grievous Twilight
Boss 1 | Rogerain the Sly
Main Boss #1
Rogerain the Sly is first boss in ESO Red Petal Bastion
Basic Mechanics
Hardmode Mechanics
Boss 2 | Eliam Merick
Main Boss #2
Eliam Merick second boss boss in ESO Red Petal Bastion
Boss 3 (final) | Prior Thierric Sarazen
Main Boss #3
Prior Thierric Sarazen third and final boss in ESO Red Petal Bastion
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