Complex sentence: Two members of the League (Mina Murray and Allan Quatermain) achieve immortality, and are next seen in an adventure in 1958, which follows events that take place after the fall of the Big Brother government from "Nineteen Eighty Four".
Split into simpler sentences: Two members of the League (Mina Murray and Allan Quatermain) achieve immortality, and are next seen in an adventure in 1958. This follows events that take place after the fall of the Big Brother government from "Nineteen Eighty Four".