Fragile Eternityby Melissa Marr
Series: Wicked Lovely #3
Published by Bowen Press on April 21, 2009
Genres: Young Adult Fantasy
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Seth never expected he would want to settle down with anyone - but that was before Aislinn. She is everything he'd ever dreamed of, and he wants to be with her forever. Forever takes on new meaning, though, when your girlfriend is an immortal faery queen.
Aislinn never expected to rule the very creatures who'd always terrified her - but that was before Keenan. He stole her mortality to make her a monarch, and now she faces challenges and enticements beyond any she'd ever imagined.
In Melissa Marr's third mesmerizing tale of Faerie, Seth and Aislinn struggle to stay true to themselves and each other in a milieu of shadowy rules and shifting allegiances, where old friends become new enemies and one wrong move could plunge the Earth into chaos.