We Grew a Dragon by Emma Chinnery

When Tina and her mum come to stay with Tom and his dad, Tina and Tom strike up an instant friendship. Tom shares his magical secret with Tina and soon the pair spend their days caring for their little dragon. They make her a bed from a shoebox lined with moss and leaves, feed her tasty morsels of sausages and pizza in special midnight feasts, climb trees together and give her lots and lots of cuddles. Soon she grows - and grows, and grows! And as they grow their dragon, Tina and Tom grow their own very special friendship too.

But then Tina's mum decides it's time for them to go back home. Tom and Tina's friendship looks like it will have to come to an end.

Unless their dragon can keep them together. . .