April's new science fiction books take you on a trip across a transformed Mars, and to the heart of a British battle against mutant Nazi orphans. Also, a couple of steampunk adventures jostle for a space in your to-be-read pile.
This month, spend some time in Victorian steampunk England, hunt down lost artifacts on Mars, or get to know Batman a little better. You could also grab a drink in post-apocalyptic Wales. All that and more, in July books.