Spirit of Mystery is a replica of the Mount's Bay lugger Mystery which made a voyage to Australia in 1854/55. In 1854 a discussion in the Star Inn in Newlyn led seven fishermen to set sail in the hope of finding their fortunes. 116 days later, their Cornish lugger, Mystery, a 37 ft fishing boat that had never previously been out of sight of land, arrived in Melbourne, 12,000 miles away.

A lugger is a sailing vessel defined by its rig, using the lug sail on all of its one or more masts. Luggers were widely used as working craft, particularly off the coasts of France, England, Ireland and Scotland. Luggers varied extensively in size and design. Many were undecked, open boats, some of which operated from beach landings. Others were fully decked craft. Some larger examples might carry lug topsails.