The Night Iceberg by Helen Stephens

It’s hard when you have to share everything with your baby brother. Tofta doesn’t want to at all. So when an iceberg drifts past her window, she decides that it’s her iceberg and she’s not going to share it with anyone. But when five hundred playful penguins turn up, Tofta finds that sharing can be great fun, too. A funny, atmospheric story about learning to share. With stunning, fresh illustrations by the author/illustrator of the award-winning FLEABAG.