Penny Preston and the Silver Scepter

There's more to this scepter than meets the eye. Eighth grader Penny Preston unwittingly releases two time-travelers from the distant past. One is an elf-like spirit from Celtic myth with a penchant for igniting fires, and the other is the sole survivor from an ancient civilization that created the prehistoric scepter recently discovered in Piper Falls. When a series of baffling events haunts the town, Penny and her friends must race to unravel the secrets of the scepter to prevent the two time-travelers from using it to change history and return to power. Trouble is, one of them seems to share her misaligned powers. Will Penny prevail before the paranormal investigator called to town catches on and creates a panic?