Juniper Wiles and the Ghost Girls | Charles de Lint
Anyone who knows her wouldn't be surprised to learn that Jilly sees the world through a prism of faerie tales. It was years before I came to understand that she wasn't just being whimsical when she talked so easily about hobs and brownies and various kinds of faerie creatures. They were real. Faerieland, otherworlds, and all the denizens and creatures you might imagine to live there. It was all real. And so were ghosts. I remember when I first realized this. I felt like my head was going to explode.... Juniper should have known better after her last foray into the otherworld. But when she's asked to look into a mysterious box full of poltergeists she ends up making a promise to seven teenage ghosts that puts here directly in the crosshairs of a blood witch's deadly ire.