Complex sentence: Clyde and Rani begin exploring and find a secret passage way they go down and find Erasmus' lab. Meanwhile Sarah Jane goes out and finds a balcony a creature in the bushes with red eyes appears it advances towards Sarah Jane.
Split into simpler sentences: Clyde and Rani begin exploring and find a secret passageway; they go down and find Erasmus' lab. Meanwhile Sarah Jane goes out onto a balcony. A creature in the bushes with red eyes appears and advances towards Sarah Jane.