Squirrel is back, and he's enjoying the long, sunny summer days.

Squirrel is back, and he's enjoying the long, sunny summer days.

But wait! Why is Bird going to bed when the sun is still up?

What a silly idea! Squirrel could never fall asleep while it's still light...

And when the sun starts to disappear earlier and earlier each night, Squirrel is convinced there MUST be a sun thief about!

Join Squirrel on a mission to find the culprit, and meet some new nocturnal friends along the way. Luckily, the sun always comes out in the end ... even if it doesn't stay for long!

• Another personality-packed story by Alice Hemming, celebrating the changing seasons

• Brilliant illustrations by Nicola Slater that are full of expression and humour

• With a handy information spread at the back for kids that explains why days become longer in the summer and get shorter through the winter

• Lots of fun facts about nocturnal animals, too!