One of the six political books for kids you should definitely read according to Zoe Williams in the Guardian, November 2018! n n Roy and Silo are just like the other penguin couples at the zoo - they bow to each other, walk together and swim together. But Roy and Silo are a little bit different - theyre both boys. n n Then, one day, when Mr Gramzay the zookeeper finds them trying to hatch a stone, he realises that it may be time for Roy and Silo to become parents for real. n