Skizz (2000 AD Presents 9) by Alan Moore
When a spacecraft from Tau Ceti crashlands just outside Birmingham, its sole occupant - Interpreter Zhcchz - is left alone and incapable of escape, in a world he can't begin to comprehend. Terrified, hungry and disorientated, the alien finally finds warmth in a dark shed...Luckily for the unfortunate alien, he is befriended by a Brummie schoolgirl, Roxy, who stumbles upon him by accident. But Skizz (as Roxy names him) becomes the object of a government search, led by the crazed alien-hunter Van Owen, after the object of a government search, led by the crazed alien-hunter Van Owen, after the wreckage of his ship is found. With Skizz still desperately trying to adjust to Earth, and only Roxy to protect him, will either of them survive, let alone cope with the strangest days of either of their lives?