The Great Perhaps

Here is my 100% Achievement guide for The Great Perhaps.

Towards the end of the game, you will enter this little town area and are tasked to find two keys.
Go into the future and enter the burnt out building (It has a singular door, and is the building AFTER the one with the burnt out car infront of it)

Once here, go into the past and press your flashlight once and hover it around the 2nd big painting. The first key appears.

Go all the way to the right in the future to put the key in..

Next, head to the left a little to the church, in the future grab the desk and move it all the way to the right as far as ity will go, then grab two stacked boxes and grab it to the left as far as it will go.

Simply head on top of the boxes, use the flashlight to hover it out on the boarded window, grab it and job done!

Go to 33:05 to see where and how this unlocks.

Hope this helps!

Achievement Walkthrough with commentary