BUMPER BLYTON: The Improvised Adventure. Brace yourself for a jolly romp through 1940's nostalgia where it's always the summer hols in this retro improv show inspired by the works of Enid Blyton. THE MAYDAYS. Award-winning improvised comedy with one of the longest-running and best improv groups in the UK. Dark Matters Shadow Puppets. Come into the shadows and explore journeys of wonder, magic and love in the world of Dark Matters, an improvised shadow puppet show.