The Return of Master Fantastic

High school graduate Paul Coleman's life is anything but ordinary. It has been only a few months since he, Myrna Trillian, his girlfriend, and her father, Montague, an Elementalist/magician, destroyed a demon named Hekla that wanted Myrna for a purpose almost too diabolical to believe. Hekla had used the power of sound to kill Paul's best friend, and her attack left Paul with very little ability to hear.
Montague is now gone, having died in the final battle against Hekla. His last feat of magic was to open a portal to Vann, a water world, where Paul and Myrna now live. Paul is mostly deaf, and Myrna is totally deaf, having been born that way. However, things take a turn for the weird when Myrna suddenly starts hearing as a normal person would. She also exhibits the ability to open portals to other worlds as her late father did.
Mystified by her sudden transformation, Paul needs to know more, and so does Myrna. They return to Earth and find it under attack by a group of winged demons from Hekla's home world, Sithros. They also find that Monty has somehow been resurrected, and while trying to solve that riddle, they also have to fight against legions of winged aliens who think nothing of slaughtering millions. It will take everything the trio can come up with to fight against an alien horde that will stop at nothing to conquer-and destroy.