Spirits of the dead are among us every day of our lives. Most of them are quiet and peaceful and we never know they are here. There are others, though, that make noise and cause mayhem; they want us to know. To get our attention, they move objects, break things, open and close doors, and play pranks. They make the hair on our arms and necks standup. They speak to us, but we just hear noises. They have messages for us, but we do not understand. The members of LOPI do understand, though. After being away for two years, T. J. Stadler, age fourteen, recruited his two younger sisters and his new friend Morgan to form the League of Paranormal Investigators, LOPI for short. Together they try to resolve whatever issue is keeping the spirit earthbound, and to help them crossover to the next leg of their journey. In LOPI: Abandoned, they discover two ghosts whose families have abandoned them, in one way or another. But neither spirit wants to leave.