For brokenhearted Olivia Larsen, nothing can change the fact that her twin sister, Violet, is gone--until a mysterious, beautiful gown arrives on her doorstep. The dress doesn't just look magical; it is magical. It has the power to grant her one wish, and the only thing Olivia wants is her sister back.Brokenhearted over the loss of her twin sister, Olivia Larson feels alone and adrift. When she is invited to a party full of beautiful strangers all she has to wear is one of her twin's cast-off dresses. Olivia brings the dress to a small, mysterious seamstress shop, but the dress is not returned to her the same. Down its newly crafted seams run a thread of magic: wear the dress, make a wish, and have it granted. Soon, Olivia will discover that while one wish might lead to the past, another might lead to true love, and still another... back to herself. Luminously written by thrilling new talent Alexandra Bullen, and conceived by Alloy Entertainment, the think tank behind Gossip Girl, The Luxe, and The Sisterhood of the Traveling Pants, this enchanting novel is the perfect modern-day fairy tale.