Secret Chest

A Secret Chest is a hidden chest in the Dreadnaught that appears after a secret encounter is completed. Each secret area has its own trigger:

• Mausoleum: Shoot the blight on the suspended Cabal combatants. They turn into Taken called Dire Phalanx, and once the last one falls the chest appears.
• Trenchway: After lighting the other two burning pillars, the Ogre Ascendant is summoned. Defeating it reveals the chest.
• Hull Breach: No combat is needed. Sneak past the Skittish Shadows and reach the Toland Orb, which causes the chest to appear.

Some of these secrets are also tied to the Legend triumphs for Dredging Up Secrets I and later parts of the series.