Book 7 : Tara Duncan, The Ghost Invasion (unofficial translation)

While trying to resurrect her deceased father, Tara’s potion created mayhem! It opened a vortex to the Outerworld, the ghosts world, who are now unleashed on Otherworld! They attack humans, possessing their bodies. And worst even… the possession kills Robin just in front of Tara. Saved by Xandiar, and brought back to Lancovit, the young spellbinder can’t live now that she lost the love of her life. Protected by her faithful friend Cal, she slowly decays. But she must act, find a solution to seal back ghosts in the Outerworld. And while she is now Ennemy n°1, the Resistance organizes itself. But what would happen if Cal too was possessed? And if the ghost in control of Omois was an old foe? And if an old foe turned to be a precious ally? Tara will have to live, fight, and soon, face the worst dilemma…