AustLit

'A pupil is in trouble for dyeing his hair white. He explains to his principal the events of the previous day that led to his hair changing color, involving an age-altering device that a man accidentally kills himself with. Was later adapted as an episode of Round The Twist.'  (https://en.wikipedia.org/wiki/Unbelievable_(short_story_collection))

'A boy gets stranded on an island with his father. But he has three other problems: one, he has never seen his mother; two, he is forced to watch his father die; and three, he has nails growing all over him. Was later adapted as an episode of Round The Twist.' (https://en.wikipedia.org/wiki/Unbearable_(short_story_collection))

Tony Twist and his three children (thirteen-year-old twins Pete and Linda and nine-year-old Bronson) move to an old lighthouse on the rugged Australian coast. They soon discover that the lighthouse and the outhouse are haunted.