Image: Sucker Punch Productions / PlayStationOfficial screenshot from Sucker Punch Productions / PlayStation.
Den of Thieves is an exploration trophy for finding Umugi Cove, the pirate town in Toyotama led by Lady Sanjo. Just reaching it unlocks the trophy.
Travel to Umugi prefecture in Toyotama and enter Umugi Cove. The trophy pops when the location is discovered.
A Message in Fire takes you there, so you may get it during Act 2 without trying.
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