Soon it will be Bonfire Night, and Jim’s making his own fireworks. Crazy Joe Materson says there’s an unexploded bomb in his garden, and Dad’s in league with him to blow up the sand-stealing excavator. When dead Uncle Buddy appears from out of a stain on the wallpaper and takes Jim back to World War 2, that’s bad enough - but then Old Beardy, the Beach Hermit, gets involved.