The Bridge of Dead Things — Michael Gallagher

Murky Victorian London. Thirteen-year-old Lizzie Blaylock has done her best to fill her absconding mother's shoes, but her father is lazy and feckless, and her little sister is riddled with tuberculosis. When Lizzie has a fit at school, for which she is expelled, she and those around her slowly begin to realize that she may have special powers…powers to communicate with the dead.

A Seventh Rainbow ebook; also available in paperback.