Rover and Speck : vol. 1 : This planet rocks!
(Book)

Two mismatched rovers alone on a distant planet -- what could possibly go wrong? When Rover crash-lands on a rocky planet and finds Speck stranded and in need of a battery charge, the two hardly seem destined to be teammates. Rover: organized, careful and on a mission to explore the galaxy. Speck: impulsive, excitable and ... not sure what his mission is. Their differences are forgotten, however, when they make their first discovery: they're not alone! And suddenly their only mission is to escape from the rock creatures that are chasing them!