You keep looking for his grandfather. You came to the witch's house. To get the key, you need to steal a coat and hat. Which is hidden in the middle of the estate. At first glance that there is no one, but this view may be misleading. On your way there will be ten puzzles, traps, and puzzles. Look for items that will help to pass this stage of the search. But hurry, because the resident of the house can come back at any time.