007. Black Widow. Duchess. Secret agents always have the best nicknames. And Kangaroo, the hero of Curtis C Chen’s sci-fi spy novels, is no exception. Well, unless you don’t think marsupials can be sneaky bastards, that is. Though in talking to Chen about his new novel, Kangaroo Too (hardcover, digital) — the second in a series that started with 2016’s Waypoint Kangaroo — he revealed, among other things, that you might want to stick with calling his hero by his code name.