Strange the Dreamer by Laini Taylor

• Lazlo is an orphan raised in a monastery -- until he he escapes to the Great Library of Zosma where he gets a job and where he can read histories and fairy tales to his heart's content.  His one true passion is uncovering information about the Unseen city, a mysterious, mythical city no one has visited or heard from in more than 200 years.
• Sarai is a blue skinned girl who has the power to enter and control people's dreams.  She lives in a floating tower with her four magical siblings, hidden from a world who would kill her and her sisters and brother if it knew they still existed.
• When Lazlo has the chance  to join a group traveling to the Unseen city, he seizes the opportunity to fulfill his lifelong dream, and he sets himself on a course destined to intersect with Sarai -- at least in his dreams.
  

I adored Taylor's Daughter of Smoke and Bone trilogy, and if it's even possible, I loved this book more.  It's a gorgeous fantasy novel set in a richly developed world with characters you will love, admire, and root for.  It takes a little while for Taylor to set the stage and for the story to get off the ground, but you'll be rewarded for sticking with it.

Grades 9-12
Book 1 of the Strange the Dreamer duology