Join Rasmus, Madoc and Sabrina and Troodie the tricolour terrier on an adventure through the subterranean wonders of Chepstow's Otter Hole caves including Long Straw Chamber, the Hall of Thirty and the Squelching Sump.



But can they rescue Oscar the Otter ...



An adventure tale for the under 8's covering weighty issues such as stalactite formation, animal welfare, impact of pollution, public access / rights of way, teamwork and how to consume biscuits when covered in mud!