Roofed by Jim Munroe

You and your brother’s job — scouring the city’s highest spots for a rare building material in the year 2040 — is already hard enough. Now Anton’s gone and gotten you trapped on a rooftop. Your acrobat bloodline will help you with the deadly heights, and your brain will figure out the genmodded plants — but will you be able to cope with having the most annoying big brother alive?