When the lost continent of Musterion was separated from Mescalahem thousands of years ago, its location became closely guarded. Using dreammelds, Madarian is able to make contact with the Empress Keres on Musterion. Madarian, Walter and Keres agree to join their unholy dark powers together, in an effort to finally defeat Wendel and Sapphire. Keres searches all of the ancient scrolls she has collected over the centuries and, at last, finds a way to bring the joined masters to Musterion. But the passageway is a mystifying, deadly labyrinth that even the incredibly powerful, joined masters may not survive. With time running out, Wendel struggles to find a way to stop the masters from joining their powers with Keres. If that dark union succeeds, the freedom fighter's cause will be in great peril. Musterion's Dark Union is a pivotal book in the Wendel Wright Chronicles, which dramatically sets the stage for the thrilling conclusion in book six. It is filled with the dramatic battles, growing peril, tender romance, timely humor and all of the great characters you've grown to love along the way.