Complex sentence: The trick works and Richard is able to get to Ego's brain, where he finds that what he had been told about Worldmind supplanting Ego's consciousness was untrue; in fact the opposite occurred, and Ego was able to supplant Worldmind's consciousness.
Split into simpler sentences: The trick works and Richard is able to get into Ego's brain, where he finds that what he had been told about Worldmind supplanting Ego's consciousness was untrue. In fact, the opposite had occurred and Ego was able to supplant Worldmind's consciousness.