When their marine biology professor disappears, the Thea Sisters search for him, and together they try to stop some wicked mice from stealing a treasure lost in a shipwreck, after which they head to China to find another treasure.
When their marine biology professor disappears, the Thea Sisters search for him, and together they try to stop some wicked mice from stealing a treasure lost in a shipwreck, after which they head to China to find another treasure.