Firebug: War of the Elementalists: Book 1

One girl closes her eyes and disappears. Another awakens in a world of endless possibilities. Elbora Minstori is an elementalist-scaler of the Five Peaks of Celestia and commander of all five branches of elemental magic. For Elbora, there is no spell too complex, no creature too powerful, no challenge too great. No challenge except one: Keeping her elder sister, Firebug, from getting them both killed. On the outside, Firebug is a formidable warrior. On the inside, buried beneath her layers of orestone armor, she bears the scars of a traumatic past. Sometimes fear of that past causes Firebug to act recklessly. Sometimes-every time-Elbora has to clean up after her. When Firebug discovers a tower rumored to hold great treasure, Elbora leaves behind a night of revelry to fight by her sister's side. Before they can set one toe across the threshold, traps and guardians litter their path through the ancient keep. The only way out is forward. The only way to survive is to stick together.