Dr. Arkham's Observation Journal: Observations on Harvey Dent - behind the Reception Counter at the entrance Dr. Arkham's Observation Journal: Observations on Edward Nigma - by the desk in the experimental procedure room Dr. Arkham's Observation Journal: Observations on jervis Tetch - In the room after the Therapy Fulfilment Center Dr. Arkham's Observation Journal: Observations on Dr. johnathan Crane - Amadeus memorial Theater Dr. Arkham's Observation Journal: Observations on Dr. Harleen Quinzel - Arkham Cell Block 6 behind a boiler (There are signs on the pillars)