The Thomas the Tank Pirates Cove Set. The Thomas the Tank Pirates Cove is full of caves and secret tunnels. Legend has it that Pirates used to bury their treasure there. This adventure-packed set features a fun Pirate Shipwreck, Skull Mountain and Treasure Tunnel. Keep your eyes open - you never know when you'll find buried pirate treasure! Inspired by "Thomas and the Treasure" and the "Thomas and the Storyteller" stories, this adventure-packed, 41-piece set is full of fun and magical surprises. The Pirates Cove Set features the exciting Pirate Ship, the exclusive and exciting Skull Mountain, Treasure Tunnel, the Admiral, Thomas, Salty and much more. This set is sure to delight and inspire any little engineer to great adventures.