Proclamation (Thronebreaker)

Proclamation is a letter in Thronebreaker: The Witcher Tales. It's obtained during the prologue, at an abandoned farm in south. You need to complete a puzzle before accessing it.

Journal Entry
PROCLAMATION ''Inhabitants of conquered territories are henceforth informed that any attempt to impede the imperial war effort shall be met with punishment of the highest severity.  Hael Ker'zaer!'' Duke Ardal aep Dahy, Grand Chancellor, Commander of Army Group 'East'