Level 11 of You Must Escape app is solved by me and I will write it down here to be your guide. This game by the way is from Tedven just so you don't confuse it with another one because there are lots and lots of games like this in google play. It's a escape game where your goal is to find the key that will open the door leading to the next stage. However, you will have to solve clever puzzles, find clues and codes in order to that one precious key.
Here is
You Must Escape Level 11 walkthrough detailing what I did to pass this level.
Get the CAN on top of the huge cabinet on the left for the room.
Check the rocking chair and pick up the roll of string from it.
Solve the tile puzzle on the wall left of the door so that it will reveal a secret compartment.
Take the stick from it the compartment.
Go to the fireplace and pick up the sledge hammer standing beside it.
In your inventory, combine the can of kerosene with the roll of strings. Then combne the roll strings with the stick.
Light up the stick by using it on the fireplace. You now have a flaming torch.
Go behind the cabinet and break the chains of the cellar door using the sledge hammer.
Put the torch inside the cellar then go down in it.
Inside the cellar, pick up the package on the table. Zoom out from the table then go to the chest on the right side. Pick up the piece of paper.
Go back up stairs and inspect the drawers to get the other half of the paper.
Tap on the paper on your inventory. That's the proper arrangement of the animal images that will unlock the deer's head.
Get the fliers from the opened deer's head then head back down the cellar and into the chest.
Use the flier on the package in your inventory. Open it to see the code to the chest which is 3663.
Open the box with that code and collect the key from it.
Go back upstairs, open the door and escape to the next level.
That's it for You Must Escape Level 11 walkthrough and I hope that it helped you pass this level of the game.