Mel and Shell

It's 1979. Swedish pop group ABBA rules the airwaves, rollerskating is cool, and Mel and Shell are best friends.
There's nothing they like more than making up dances to ABBA songs, and there's nothing they like less than Scary Sharon and Stinky Simon. But things are changing, fast.

Confiding in her pen pal from 1829, Shell discovers she has a lot to learn about loyalty, honesty and rollerskating.