Sean Anderson's stepfather joins him on a journey to an island that shouldn't exist, where Sean hopes to find his grandfather.

"Secret Staircase Construction is under attack, and Tempest Raj feels helpless. After former client Julian Rhodes tried to kill his wife, he blamed her "accident" on the home renovation company's craftsmanship. Now the family business - known for bringing magic into homes through hidden doors, floating staircases, and architectural puzzle walls - is at a breaking point. No amount of Scottish and Indian meals from her grandfather can distract Tempest...