Mr Walker Braves the Night

Following on from The Tales of Mr Walker comes another charming story about this hotel dog with a nose for adventure.
Halloween is just around the corner and with it comes the promise of treats and walks. Mr Walker can't wait! That is, until his toy wombat disappears without a trace and strange noises start up in the night. Is it Mr Walker's imagination or is there a guest of the spooky kind visiting the hotel . . . ?