How to find doctor youngs fingerprints / notes in the arkham mansion?

[Bitcoin Baron]

Rescued the hostages and theres no fingerprings in the library anywhere. What do i do?

[Bitcoin Baron]

Theres three forcefields in the level which seem the only way to go, one in the library and 2 in the main room, but theres no way past any of them, if that helps?

[JonoAMano]

Go back to the Library where you rescued Cash and the hostages. From the center of the Library, turn right and enter the door near the catwalk staircases, the one opposite of the Library force field. That path will ultimately lead to Dr. Young's office. It should be marked on your map; consult the map when in doubt.

Edit: My bad, I had you in the Records Room with Cash. In the Library level with the two hostages (a doctor and a guard), scan the books in Detective Mode to find her fingerprints.

[RED-FROG]

Which books do I have to scan? Ive been everywhere!

[JonoAMano]

Make certain you've rescued Cash and his guards in the Arkham Records Room first, through the Main Hall and the West Wing Corridor. Then go from the Records Room through the North Corridor and scan Dr. Young's fingerprints from inside her office. Then go to the Library. The book you scan in Detective Vision is in the lower Library level where you rescued the single guard and an orderly. These rooms are clearly marked and listed on your map.

Review this same topic subject and YouTube videos:
Can't find Dr. young's office?
https://steamcommunity.com/app/35140/discussions/0/828925849296064739