The Sun Thief by Alice Hemming, Nicola Slater

The summer companion to The Leaf Thief, this is a perfect picture book about the way the days lengthen and shorten as spring turns into summer and summer into fall.

Squirrel and Bird are back, and this time it’s summer! But squirrel is perplexed: a few weeks ago, the sun was still out at bedtime. Now he's brushing his teeth in the dark! There must be... A SUN THIEF!