Escape Before Mummy Returns

You often have lost the keys to the house and my mother told you that again, and it will not let you in the house. Once you have played with friends and got so carried away that did not notice that the keys were lost again. Your mom went to the store and you still have a chance to find the keys, because sleeping on the street is not very convenient. Explore every square centimeter of the area, and maybe you can find the keys to the house.