Changeling by Delia Sherman

SYNOPSIS
A determined heroine, a quest— adventure galore!
Neef is a changeling, a human baby stolen by fairies and replaced with one of their own. She lives in “New York Between,” a Manhattan that exists side by side with our own, home to various creatures of folklore. Neef has always been protected by her fairy godmother—until she breaks a Fairy Law. Now, unless she can meet the challenge of the Green Lady of Central Park, she’ll be sacrificed! Neef is determined to beat the rap—but time is running out . . .

MY VIEW
This is a stand alone urban fantasy, actually personally I don't think it quite falls into the urban fantasy category, you may disagree.

Neff is the central character and is a changeling (surprisingly enough!), she was kidnapped in New York as a child and a fairy was put in her place who looked like her. So technically Neff isn't really a changeling at all. Neff is a great character, sometimes with these types of books I find the main cgharacter slightly irritating but, not Neff.

Its difficult for me to say anything without giving anything away and I hate to have a review of spoilers so suffice to say if you like Holly Black or Tamora Pierce you will like this.

This is my first delia Sherman book and hopefully it won't be my last I have read a short story of hers in one of Ellen Datlow's compilations which is what led me to this.