Hey Guys And Gals, Here is my 100% Achievement Guide & Full Walkthrough for Wailing Heights!
This is for finding the lost book you need and completing act 1.
It is a very short chapter but here are the timestamps of things to do & achievements to unlock in Act 1.
Prison Break - 3:00 Start
Extra Collectible 1 - 12:20
All The Balls - 16:05
Extra Collectible 2 - 20:10
Act 1 Complete - 22:50
Hope This Helps!