The hurricane has passed. The treasure has been found. The mortgage on the Miller Estate has been paid (see The Mystery of the Ugly Bottle). But what has happened to Jennie and Jeremy’s father? He was caught in that storm and has not been seen since. Nicalee has written to her cousin, Jennie, asking her to hurry to Louisiana a week earlier than her scheduled summer vacation. She has discovered a clue that suggests Jennie’s father may still be alive. Nicalee’s older brother is missing as well. He had been with his uncle on the ill-fated treasure-hunting trip. Nicalee waits anxiously on the front porch for the moment Grandpa Miller’s battered truck will appear from the winding, gravel road which leads through the trees to Grandma Miller’s house. Join Nicalee and Jennie as they risk their personal safety to follow clues and trails they hope will lead them to their two missing family members.