Magical Children: The Invisible Boy
Part of the Magical children series
When his parents are lost in space, Sam is left, heartbroken, in the care of the horrible Hilda Hardbottom. Then he finds a tiny spaceship in the cabbage patch and meets a little alien called Splodge. How Splodge makes him invisible, and how Sam uses his new talent in his darkest hour, makes a touching and extremely funny story with lovely memorable characters.