The Door Within was the first novel by Wayne Thomas Batson, and the first in his trilogy of the same name. It told the somewhat allegorical, but never preachy, story of Aidan Thomas, who was whisked to the Realm not long ago after finding a set of incredible scrolls that told its history. Upon leaving, successfully completing his mission and simultaneously saving his father and his father's Glimpse-twin, he saw his best friend, Robby Pierson, had red eyes. This meant he was a servant of the dark lord Paragor.
Now, Aidan is beginning to settle back into his normal lifestyle. One day, though, he meets a girl named Antoinette Reed, a magnificent artist, a skilled fighter, and a firm believer in Alleble and its king, Eliam. He realizes her Glimpse-twin is Gwenne, his love from the Realm. Suddenly, Antoinette is called just as Aidan was in the first book to go to Alleble as the Twelfth Knight, in a desperate attempt to stop Paragor from unleashing his greatest horror yet upon the Realm: the Wyrm Lord, an ancient dragon of evil.
Congratulations are in order for Mr. Batson, as his second book far surpasses his first-- and the first was good. The characters are more fleshed out, including the villains, the perils seem more real, and his writing style is better as well. Be prepared for a surprise cliffhanger ending, though-- you'll want to have Book III, The Final Storm on hand.