Dark Phantom (Phantom Diaries Beginnings #2)

Left at the Paris Opera House as a baby, the young Eric's teen years are fraught with despair and discovery as he discovers his love for music and surviving the streets of Paris. 

Phantom Diaries Beginnings - about the origins of Eric from The Phantom Diaries' young adult paranormal retelling of The Phantom of the Opera.

Dark Beginnings (Phantom Diaries Beginnings #1) - Now Available
Dark Phantom (Phantom Diaries Beginnings #2) - Oct. 11, 2011     
Related Series:

The Phantom Diaries Series:Phantom Diaries - Now Available.
Dark Memories (Phantom Diaries #2) - Now Available.
Immortal Darkness (Phantom Diaries #3) - Nov. 15, 2011