When one member of their close-knit group disappears, the remaining four start digging for answers. The creepy history of the small town of Coalsmouth begins to surface. Could the deaths of Mr. Adams and his son, Joey, have anything to do with the appearance of the Tibbar? However, it may be something relating to the ancient Native American Chief's powers and his curse on the Coal River. But wait! If the Tibbar only snatches teen bullies, then whatever happened to Mrs. Adams?

Will the sweet, old lady, Della have any insights to help the kids find their friend and defeat the Tibbar once and for all? And what the heck is a pooka, a Celtic relic, in addition to all of those strange herbs?

Can their pal be rescued? Will the Tibbar return? Is it possible for the town's Easterfest to go off without a hitch?