Windmills and Mills A Plague Tale Requiem - Chapter 9 puzzle

To solve the windmill puzzle in A Plague Tale Requiem , you need to stop Windmills I and II and start Windmills III and IV. This is easy to do: go inside all the windmills and push in the device to stop the windmill, or pull it out to start the windmill.

Windmill I can be entered through the front door, while Windmill II requires crates to be moved to get to the top. Mill III: Tell Hugo to crawl through the gap to open the door. Mill IV can be opened by squeezing under the cart and shooting the lock on the door through the open window.

As soon as windmills I and II stop and windmills III and IV start working, you will hear the ground receding from under your feet. You can then go down the slope behind the windmills and take the stairs to the crypt. Follow there, and at the very end you can unlock the bracer and secret armor for Amicia.