This book is about a space colon on an asteroid near earth. There is a small mining settlement, but it was attacked by pirates for the valuable ore that earth needs. A few kids are trapped underground, and they are the only ones who can stop the pirates. I love this book for many reasons. It's a simple, yet engaging series, and it had me hooked for quite awhile. If you like action/adventure books, don't miss Minrs! ( )