Complex sentence: Hex's long-term memory storage is a massive beehive contained in the next room; the presence of the bees makes this secure memory, because attempting to tamper with it would result in being "stung to death" (quoted from "Hogfather").
Split into simpler sentences: Hex's long-term memory storage is a massive beehive contained in the next room. The presence of the bees makes this secure memory, because attempting to tamper with it would result in being "stung to death" (quoted from "Hogfather").