The Bookwalker: Thief of Tales
37 Achievements
GOG
Your Shield, My Liege
Obtain a new skill
35.1%
How to unlock the Your Shield, My Liege achievement in The Bookwalker: Thief of Tales - Definitive Guide
After finishing the first book, deliver the briefcase downstairs in the building and then go to your bed. When you wake up, walk over to the desk with an open notebook, and the game will force you to get a new skill. This achievement is a Unmissable , I think.