During his solo investigation, Jared discovered the Elf Exploration Guide written by his great-aunt's father, Arthur Spitwick, in the attic of the building.Despite a warning on the outside of the book, Jared read the guide and came across one of the elves described in the book, the brown elf Simbertek.

Follow the Grace family as they move into their ancestral home and uncover dark secrets about their great-uncle, who discovers a secret elven world parallel to theirs.