Reclaiming Shilo Snow by Mary Weber
My rating: 4 of 5 stars
Haven't read the first book? Don't worry - this very nearly could work as a stand-alone. There's not as much world building here (possibly it's in the first book), and the characters are pretty static but it's the action that is important. Who exactly are the Delonese? What is happening on their moon-spaceship? Can Sofi rescue (or reclaim) her brother Shilo? And what about those Corp CEOs? Not all of them will be answered, but that's ok. And no, apparently there won't be a third book answering those questions.
My biggest quibble is that as an adult, the idea of aliens coming to help save the people of Earth usually leads me to think of the Twilight Zone episode "To Serve Man", among other "don't trust their motives" episodes and movies and books. (Note: that's not a spoiler, because this is covered in Book One, continuing in Book Two.) Doing something different would have been nice.
ARC provided by publisher.