Mac and his reluctant friend Paul head from Australia to Manhattan to continue their work for the Coolhunter website, and once there they discover a group of young inventors whose work is meant to be kept top-secret.

• ISBN: 9781416985761
• Author: Bancks, Tristan
• Published: 2011 , Simon & Schuster Children's Publishing
• Themes: Inventions
• Descriptors: Australia, Intermediate (ages 9-14), Oceania, United States
• No. of pages: 192