Phantom Garden

To win the heart of a girl, you have decided to surprise her for their courage. One forest witch has a small supply of potions of eternal youth, which is enough for two. You wanted to steal the potion and share with your loved one. Once you get into the ground witch you are logged into her yard, but the gates were closed and now you're trapped. Here, everything looks perfectly normal, except for the high fence around the entire property. Find the key to the gate.