When Magic Fails by Alaina Stanford

Risking everything to save the adventurers from the Elf Council’s decision to execute them for treason, the Elf Prince Cabal arranges for their escape. They then disappear, in search of the menacing storm cloud responsible for assassinating the wizards of the Elf Council.

After the tragedy of losing one of their own shortly after entering this new world, the remaining adventurers begin to create a new life in a world filled with Elves, magic, and Trolls. Suddenly the last surviving Elf Wizard vanishes in a violent storm, leaving an entire battalion of Elf Warriors dead. The adventurers now face a mysterious magical foe of unimaginable power.

As they rush to meet their fate, the adventurers quickly discover that a careless action from their past has poisoned the land and caused the Trolls to emerge from their lair.

Soon they have no choice but to head into a battle that pits friend against friend...