R. M. Ballantyne 
Gascoyne The Sandal-Wood Trader A Tale of the Pacific 

On a small island in the heart of the Pacific, a colony of settlers receives a visit from a mysterious man known as the Sandal Wood trader. Some say he’s a pirate while others believe he is exactly what he claims-a harmless trader. Join Henry, Bumpus, Reverend Mason, and a host of other memorable characters as they unravel the mystery of who this trader really is. Are the settlers about to be robbed and destroyed? Or, is this man’s assistance necessary for the survival of the colony? (Goodreads)