Arkham Island East Riddler Trophies - Batman Arkham Asylum

Where to find all of the Arkham Island East Riddler trophies and challenges in Batman Arkham Asylum. It is an area with the Arkham Mansion

All Riddler Trophies Challenges (Arkham Island North) Batman Arkham Asylum

Riddler Trophy Locations - Bleake Island Collectible Locations - Collectibles Guide, Batman: Arkham Knight

Batman: Arkham Asylum Walkthrough - GameSpot

Batman: Return to Arkham Asylum - Riddler's Challenge - Arkham Island East (All Collectibles)

Batman: Arkham Asylum - xbox360 - Walkthrough and Guide - Page 17 - GameSpy

How to Find all the Riddler Trophies in Batman: Arkham Knight

Batman: Arkham Knight - Wikipedia

Batman: Arkham Asylum - ps3 - Walkthrough and Guide - Page 75 - GameSpy

Riddle Resolver achievement in Batman: Arkham Asylum GOTY

Batman: Arkham Asylum - Road Map and Trophy Guide - Batman: Arkham Asylum