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On the end of the cement dock located to the left of the entrance to the Mansion. Riddle 1: "Does Scarecrow's gas break down barriers as it drives you insane?" Using the Ultra Batclaw at weak wall, there two of Scarecrow's canisters to scan as a riddle.  Riddle 2  "Zsasz is counting on you finding his work." Above the Penitentiary, there is a room and scan three dead Arkham guards Zsasz killed on a card game to solve the riddle. Riddle 3: "Do you see what I can see? No? Then maybe I am in a stro

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