Montgomery's Battle with Atlantis: The Omnifex Chronicles, Volume 2

In the second book of the Omnifex Chronicles, 13-year-old Montgomery Vane navigates the challenges of mastering his magical abilities while adjusting to life beneath London and attending a new school. As a new and dangerous threat emerges from the Underworld, he must quickly develop his skills and even forge unlikely alliances to protect his friends from formidable enemies, setting the stage for ongoing adventure and discovery.