Mystery Case Files: The Malgrave Incident Cheats

There are two additional hidden object screens that you can unlock during The Malgrave Incident.
Collect all the postcards in the game (there are 31 of them) and you will be given the ability to access a Barbershop hidden object screen at South Street, and another with the Plaza Curiosity hidden object screen at the Plaza.

Just keep checking your map in the book to see where dust is available. If you do that half of EVERYONES questions would be answered.