"Airborn" by Kenneth Oppel
Matt Cruse is a cabin boy on the Aurora, a huge airship that sails hundreds of feet above the ocean, ferrying wealthy passengers from city to city. It is the life Matt's always wanted; convinced he's lighter than air, he imagines himself as buoyant as the hydrium gas that powers his ship. One night he meets a dying balloonist who speaks of beautiful creatures drifting through the skies. It is only after Matt meets the balloonist's granddaughter that he realizes that the man's ravings may, in fact, have been true, and that the creatures are completely real and utterly mysterious.
Wonderful book!! I was a little skeptical when I read the above paragraph on the back of the book. It sounded a lot like a fantasy. I'm not really too found of those kind of books. But I kept reading and got hooked! The writing is very good and is very descriptive. I felt like I was aboard the Aurora! The beautiful creatures seem all too real. The time frame of this book could be from the past or the future.