The next day, Moreau begins working on a puma. Prendick gathers that Moreau is performing a painful experiment on the animal and its anguished cries drive Prendick out into the jungle. While he wanders, he comes upon a group of people who seem human but have an unmistakable resemblance to swine. As he walks back to the enclosure, he suddenly realises he is being followed by a figure in the jungle. He panics and flees, and the figure gives chase. As his pursuer bears down on him, Prendick manages to stun him with a stone and observes that the pursuer is a monstrous hybrid of animal and man. When Prendick returns to the enclosure and questions Montgomery, Montgomery refuses to be open with him. After failing to get an explanation, Prendick finally gives in and takes a sleeping draught.