Green valley escape

There are many legends about the Green Valley. One of them says that whoever finds himself in it will no longer be able to return to the real world. But you do not believe in prejudices and idle gossip and decided to make sure of their untruthfulness for yourself, and went to the valley. In fact, it turned out to be an ordinary unremarkable piece of forest. You wandered a little, and when you were about to leave, you suddenly realized that the exit was closed.