The sequel to Night Train to Rigel continues the adventures of Frank Compton, the interstellar Quadrail system and his sworn enemy the Modhri group mind. In this installment, further machinations by the progenitures (OK, the Shonkla-raa they’re caled in this universe) are revealed and despite the “Third Man” reference in the title, this is a bit more of a Maltese Falcon than anything else. A bit of breaking and entering, a 1%er getting beaten to death on a train (we pretty much know who from the start, so this is a “whydunnit” rather than a “who dunnit”). Enough plot twists to create the Monaco Grand Prix circuit, with a few bits of paranoia thrown in. If you like the first, it’s definitely worth keeping on with these.