Fablehaven is one of the 8 secret nature preserve protecting beings of myth and legend from the outside world. The current caretaker, Stan Sorenson, describes it as "a refuge for mystical creatures". Those who live in this large sanctuary, mortal and magical, must abide by a treaty of rules. The most common rules are focused upon "the law of the harvest" or "the law of retribution" meaning, you reap what you sow. It is described in the book as, "mischief for mischief, trouble for trouble, magic for magic." If this law in the treaty is broken, you lose the magical protection it provides, allowing for retaliation. There also exist magical borders that keep most mystical creatures within the preserve, but out of certain domains. The caretaker's house and grounds are within one of these protective boundaries. However, some of these borders dissolve on certain nights, allowing frightening creatures to roam free on the grounds, one of which - Midsummer Eve. You will be one of the select few students, a chosen to go on a field trip to this persevere, disguised as a normal preserve. When they get there, they also meet Dale, the groundskeeper, and Lena, the housekeeper. You will not know about Fablehaven being a secret preserve for magical creatures at first exploring the preserve, seeing exotic animals. But one day tour eyes are opened to a mystical world full of the magical beings of Fablehaven. But things will change quickly, they will be confronted with a war between two forces, and you will be forced to choose a side, the Knight of the Dawn, made to protect the preserves and all humans from the supernatural, or the Society of the Evening Star, bent on freeing the demons from their prison, and controlling the world. What side will you chose?