Mars Patel's friend Aurora has disappeared! His teachers are clueless. His mom is stressed out about her jobs. But Mars refuses to give up--after all, his own dad disappeared when Mars was a toddler, before he and Ma moved to Puget Sound from India. Luckily, Mars has a group of loyal friends eager to help--smart Toothpick, strong and stylish JP, and maybe-telepathic Caddie. The clues seem to point toward eccentric tech genius (and Mars's hero) Oliver...