Complex sentence: Simultaneously, Eliza's father, Nigel, finds the lost babies, and heads in their direction but ends up tumbling down a hill, suffering amnesia after a coconut falls on his head.
Split into simpler sentences: Simultaneously, Eliza's father, Nigel, finds the lost babies. He heads in their direction but ends up tumbling down a hill and suffers amnesia after a coconut falls on his head.