The Horizon War Trilogy / Robert Weinberg

The Road to Hell: The battle for reality ignites as mages of all stripes vie for the fabled Horizon Realms, the dimensions juxtaposing Earth and … elsewhere. A villain from the mages’ past returns to claim his legacy, embroiling both Earth’s magick makers and the vampiric Kindred in a struggle both for survival and for dominance of all known creation.

The Ascension Warrior: The Ascension War has raged between the mages of the Nine Traditions and the Technicians of the Technocracy for hundreds of years. Though battles have been won and lost, victory eludes both sides. Now, however, a figure has risen with ties to the Traditions and the Technocracy. He is a being of incredible, inhuman power; he is the Ascension Warrior. He brings a message of unity and peace. But is it the peace of the grave?

War in Heaven: A desperate war is raging in the Horizon Realms, the mystical dimensions surrounding Earth. The mages of the Nine Traditions and the Technocracy are under attack by a mysterious will-worker who calls himself Heylel Teomin, the Ascension Warrior. His challenge: join me or be destroyed. Only a small group of unlikely allies oppose him. If they fail, humanity is doomed.