Queen of Muck

Lucy and Lily's Granddad is missing and they're desperate to find him. But first they must survive a great and unusual adventure filled with brutes in nail-polish, a strange bookshop, a children-eating beast, a huge rock and secret tunnel, a very bad orchestra, rotten tricks, flying chunks of cupcake, a talking fox, vomiting, swords, sneak-walking and someone who really isn't very nice.