The Empyrean Odyssey was a trilogy of novels written by Thomas M. Reid. The trilogy was initially published as separate novels; in 2011, the trilogy was published as an omnibus.
|“||Aliisza and Kaanyr Vhok have returned from their attempted invasion of Menzoberranzan and set their sights on Sundabar. But before she can complete a mission in that besieged city, Aliisza finds herself in the one place a demon would never want to go, no matter how sure she is of her wits and cunning: the very heart of Celestia.
But Aliisza soon discovers that being held captive in Celestia is just a distraction for a far deeper and more deadly scheme. One that threatens all of the Forgotten Realms world. One that, as much as she hates to admit it, the angels of Celestia really should know about. But how is she going to convince the angels that she, a demon, could have more in mind than destruction?