Puddlehoppers - Terry Endacott - Bog

Have you ever looked in a puddle? I mean, really looked in a puddle? You may be surprised who is in there looking up at you, while you are looking down into it.
And what if you fell in the puddle? I mean, really fell in the puddle? Not just splash your wellies in it, but fell through its surface into another world where the puddlehoppers live?
And just like there are not nice people in the world, so there are not so nice puddlehoppers. Jules and his Uncle Gideon become involved in an adventure to stop three such puddlehoppers from doing their evil deeds.