Ruby and the Moon Children - Lindsay Walter

This is a story about being lost and found … about trust, taking responsibility and learning to be independent. And it’s about what the world is like at night.
Ruby is supposed to be looking after Col and Will, but instead, she takes them out in the moonlight. After some unexpected events they arrive at the park; but then Will runs off to join the strange Moon Children.
And they’re not what you’d like to meet in the middle of the night, far from home.
Ruby’s a dog, by the way. But a rather special one.