Sentinel #8

The cover of this 2003 Marvel series captures a thrilling moment: a young teenager rides atop a massive, disc-shaped Sentinel as it hurtles through stormy skies, the robot's glowing orange eyes staring upward from the machine's flat surface while the kid grips on with one arm outstretched. Cover pencils by Joe Vriens and inks by Sacha Heilig give the scene a clean, energetic manga-influenced style that suits this boy-and-his-robot premise perfectly. "No Hero Part 2" promises that the partnership between kid and machine is anything but smooth sailing — and that's exactly what makes Sentinel such a compelling corner of the Marvel Universe.