Reign of Fire

From the Dust Jacket Front Flap of the Gollancz edition: ...Reign of Fire - continuing and concluding the story - begins where its predecessor ended, with the humans in disarray: some injured, others isolated with a Sawl caravan, having to battle their way through steadily deteriorating conditions in an attempt to rejoin their compatriots. And the major mysteries of Fiix remain to be solved: what is the Sawls' background; why is the planet's climate so different from what it was and what it should be?