The Little Wooden Robot and the Log Princess

For years, the king and queen have tried desperately to have a baby. Their wish was granted twice, when an engineer and a witch gave them a little wooden robot and an enchanted log princess… but there's just one catch: every night when the log princess sleeps, she transforms back into an ordinary log, and can only be woken up with magic words. 
 
The princess and her robot brother are are inseparable, until the sleeping princess, mistaken for lumber, is accidentally carted off to parts unknown. Now it's up to her devoted brother to find her, and get them safely back home!

This very very cute book is perfect for ages 4-8!