Can't help but feel I missed a volume somewhere along the way, but... well, this is a self-contained adventure featuring cosmonaut Yuri Gagarin in space searching for his dog friend Laika. They end up transporting a vengeful ex-slave armed with deadly biological weapons into the heart of a vast space empire, pursued by a bored space-judge looking for a little spicey space adventure. So, that happens. It's certainly colourful and strange and full of black humour and violence and scientific nihilism. One senses one could have enjoyed Yuri and Laika's ongoing space adventures, but Hickman isn't the sort to allow any of his characters become overly likable or, y'know, live very long if they do. Still, 259 in dog years isn't bad.