Five go out of this world

Chapter One: A Splendid Surprise โ€œWhat a cracking day for a proper adventure!โ€ cried Erik, kicking a pebble that skittered along the frost-bright ground. The planet Mercury gleamed all aroundโ€”silver cliffs, dusky craters, and lakes that shone like puddles of glass. Four children in neat little space-smocks stood beside a squat rocket-cart, and a cheerful …