Complex sentence: Rincewind and Twoflower have a narrow escape from Bel-Shamharoth--a monster inspired by H. P. Lovecraft, who wrote many stories in a universe where unspeakable Evil lives, and where Ancient Gods (with unpronounceable names) play games with the lives of mortals.
Split into simpler sentences: Rincewind and Twoflower have a narrow escape from Bel-Shamharoth--a monster inspired by H. P. Lovecraft. Lovecraft who wrote many stories in a universe where unspeakable Evil lives, and where Ancient Gods (with unpronounceable names) play games with the lives of mortals.