The Invention of Hugo Cabret

ORPHAN, CLOCK KEEPER, AND THIEF, twelve-year-old Hugo lives in the
walls of a busy Paris train station, where his survival depends
on secrets and anonymity. But when his world suddenly interlocks
with an eccentric girl and her grandfather, Hugo's undercover life,
and his most precious secret, are put in jeopardy. A cryptic
drawing, a treasured notebook, a stolen key, a mechanical man, and
a hidden message from Hugo's dead father form the backbone of this
intricate, tender, and spellbinding mystery.