Complex sentence: The sailors then leave the dock and Little Pig Robinson quickly realizes he has been kidnapped and the sailor he had met at the market was in truth the ship's cook and had planned to turn Little Pig Robinson into a fine feast for the ship's men.
Split into simpler sentences: The sailors then leave the dock and Little Pig Robinson quickly realizes he has been kidnapped. He further realizes that the sailor he had met at the market was in truth the ship's cook who had planned to turn Little Pig Robinson into a fine feast for the ship's men.