Ivon, the son of a dark elf prince and a light elf princess, has forgone his life as a metis mercenary to embrace his royal blood as heir to the thrones of both the Sidhe and the Unsidhe Courts. However, the dread grey plague threatens the elves with extinction, and betrayal lurks in the shadows. Ivon must endure the Trials of Ascension if he is to save his people and unite them all into a single nation.