A Bridge in the Forest — JoElle Martin

Lily Kingman was always a little strange. On her eighteenth birthday she finds out why. Lily discovers a secret gate at the bottom of a river that takes her to FeyTerrah, a fantastic world of enchantment and danger. While there, she encounters Dreamer, the captivating elf she is destined to marry. Shortly thereafter, Lily undergoes a transformation that reveals her true nature. Escorted by a small group of elves and a fairy, Lily is taken to the land of her ancestors were she meets the fairy king. His Majesty believes Lily may just be the key to finding his missing daughter. So he sends Lily, with her escorts, back to Otherworld--the domain of the humans--to find the princess. Eventually Lily is forced to make a difficult decision. She must choose a world. Will she return to the beautiful yet strange land of her ancestors or stay among humans, even though she fears they will no longer accept her? This is the first book in the Dreamer's Forest.