This time the trio is in historic Barkerville, a gold rush town with a secret.

Rusty, Katie and Sheila are sent out of town with Rusty's grandparents to keep them out of trouble. After witnessing what they take to be a ghost in the night, the three friends find themselves involved in a mystery from the past that seems to have a few other people interested as well. New information has come to light about a fortune in missing

Katie and Rusty are heading East.

Fresh from their thrilling adventures in Alberta, facing down devious developers, the cousins have made their way to Aunt Margaret's farm in Saskatchewan. After rescuing her aunt when she is trapped under a piece of farm equipment and learning of other acts of possible sabotage, Katie decides that she has found another mystery to solve. Puzzled by the changes they notice in their cousin