Misaligned

When shadow-monsters attack in the cafeteria, eighth grader Penny Preston panics, starts a food fight, and unknowingly creates a trans-dimensional rift. Summoned to the counselor’s office, she expects suspension, but instead discovers that she exists in more than three dimensions. Unless she immediately begins training to learn to handle her powerful abilities, she risks losing her sanity. Together with Simon, her telepathic multidimensional cat, Penny struggles to save her relationship with her best friend, protect her universe, and uncover her connection to Arthurian myth.

When Penny solves the riddle of an unbreakable knot in time, she unwittingly releases two time-travelers from the distant past into Piper Falls. The town is plagued by a series of baffling events related to the appearance of a strange elf-like creature. Penny's science teacher and mentor, Mr. Myrdin, recognizes him as the Coch Coblyn, an evil spirit from Celtic myth with a penchant for igniting city destroying fires. 

Eight-grader Penny Preston thought she knew how to handle the Bodach, the spirits from the fifth dimension. But suddenly something is attacking the structure of the multiverse. Left unchecked, the attack will tear the fabric separating the dimensions and destroy the universe in a cataclysmic cosmic crunch. As the stress on the fabric grows, higher-dimensional energy escapes into Piper Falls, NY, reenergizing the Bodach. Emboldened, they use their regained powers to wreak havoc on the small town. The extra energy draws several new higher-dimensional entities to Piper Falls.