Shortly afterwards, Colin and Robert return from their walk and Colin notices that something is very wrong with Mary. It turns out that Caroline has laced the tea with a drug that paralyzes Mary but leaves her able to see. With Mary being unable to move or warn Colin, he is still in the dark about what is going to happen to him. She has to watch helplessly as Robert and Caroline start to touch Colin, kiss him, whereupon Robert slits Colin's wrist with a razorblade. As a result, Colin bleeds to death; Mary passes out completely. She later awakens in the hospital and finds out that Robert and Caroline are gone, having taken all their belongings with them.