Mary-Mary, Lollie and Sylvia go on a school trip to the gallery. They slip through a panel door marked PRIVATE, where they encounter Mr Thistle, an art restorer. How important is it to be a good observer?

Sylvia is concerned about her granddad. He has taken to sitting on a kitchen chair in the back garden. He has a plan, he tells her. He will need a go-cart and Sylvia's help.

Izzy wants to feel the earth rotate under the wheels of her otherwise stationary skates. The dentist she is avoiding turns out to be a fellow cosmic traveller.

Curious Izzy follows a flight of birds and that leads her to the coast. She meets Buffer, the school bully, but also Wally, a motorcycle Garda obsessed with birds. A person might investigate one thing, but find another.

A school trip is very much more interesting when a hippo joins in. Well, it is a science project, after all, and Izzy's grandma arriving on her new motorbike can be part of it.

'We've all grown up and moved away, Perhaps you live there now.' Interlinked stories of childhood read by Ciarán Hinds and written by Philip Davison. Coming soon.