Here is the full list of all 20 Escape From Mystwood Mansion achievements.
Escape the Mansion.
Escape the Library level.
Escape the Winter Garden level.
Clean up in the Winter Garden level.
Turn the food chain statues before opening the door to the greenhouse.
Escape the Wine Cellar level.
Use the cork from the wine cellar to stop the water flow in the storage room.
Find the secret in the Wine Cellar.
Escape the Office level.
Solve the wire puzzle in the office without any "loose ends" of the wire with electricity running through it.
Add two logs to the fireplace in the office.
Escape the Entrance level.
Throw the package.
Flip the blackboard in the greenhouse until it has had enough...
Escape library part 1 in an unconventional way.
Translate the last password of the library from elvish.
Complete the game without using any hints.
Deliver the package.
Deliver the package without dropping or throwing it.
Become the overseer.