Forest of Fear (Choose Your Own Adventure, 54) - Tapa blanda

You are spending the summer in Maine, with your uncle. He's writing a book about an old Indian legend: the story of a sacred pine tree whose branches were said to be inhabited by spirits.

You decide to hunt for the spirit tree. You find it! You fall asleep under its branches.

You awaken surrounded by six shadowy forms. They order you to make a terrifying choice: you must drink a deadly herb brew, or walk across burning coals. A legend is coming true, and you are trapped in it!