The Saga of Seven Suns by Kevin J. Anderson all first edition

Book 1: Hidden Empire (2002) Humanity has spread across the galaxy and now controls the Spiral Arm, but when an ancient alien race is accidentally awakened by a human corporation, war erupts. The novel kicks off a sweeping saga involving galactic politics, betrayal, artificial intelligences, and long-dormant cosmic powers.
Book 2: A Forest of Stars (2003) As the galactic war escalates, political alliances fracture. The human race is caught between the awakened elemental aliens and internal rebellion, while ancient secrets continue to unfold
Book 3: Horizon Storms (2004) The war between the humans and the hydrogues continues. Human factions turn on one another, and forbidden technologies emerge.
Book 4: Scattered Suns (2005) As humanity splinters, various leaders and rogue groups begin to act on their own. New alien species enter the fray. Mystical elements start blending with science.
Book 5: Of Fire and Night (2006) Humanity faces annihilation as the elemental war reaches its peak.16