The Dumpster's Daughter

A bored ten year old girl is stuck at her mother's workplace (a daytime shelter for homeless women and children). While rummaging around she finds a diary which seems to belong to one of the shelter's homeless clients. Whose diary is this? What is her name? The questions become more and more urgent as the girl reads on: this nameless woman and her baby might be in terrible danger. Will she be able to help them? Will she find out who they are before it's too late?