The House at the Edge of Magic by Amy Sparkes

"Sometimes you are a whisper away from magic without even realizing it."

Nine is an orphan pickpocket determined to escape her life in the Nest of a Thousand Treasures. When she steals a house-shaped ornament from a mysterious woman's purse, she knocks on its tiny door and watches it grow into a huge, higgledy-piggeldy house. Inside she finds a host of magical and brilliantly funny characters, including Flabberghast - a young wizard who's particularly competitive at hopscotch - and a hideous troll housekeeper who's emotionally attached to his feather duster.

They have been placed under an extraordinary spell, which they are desperate for Nine to break - and if she can, maybe they can offer her a new life in return...