Chapters 22-26:

Edgar Linton has come down with a pretty serious cold, and Cathy is highly distressed. She dreads the worst, and fears what will become of her if he dies. As Cathy and Nelly take a walk on the moors, discussing Mr. Linton's illness, they run into Heathcliff. Heathcliff guilt trips Cathy, telling her that Linton is dying of a broken heart because she has stopped answering his letters, and he believes she does not love him anymore. Heathcliff tells Cathy that Linton is dying, and she is the only one who can save him, all she has to do is come by the house and visit him or write again. But Nelly warns Cathy not to, and tells her that visiting Mr. Heathcliff's house would surely send her father to his grave. Cathy however grew scared for Linton, so her and Nelly set off to Wuthering Heights. When they arrived Cathy began to fuss all over Linton, giving him whatever he desired. Nelly did not like this, she saw that Linton was playing Cathy for attention.
Soon Nelly falls ill, and Cathy is frightened that she may lose her. Her feelings that she's kept bottled up inside make her reckless, and she begins to sneak off into the night to Wuthering Heights to visit Linton. Cathy and Linton's relationship pregresses, and the two begin to fall in love. However Hareton also develops feelings for Cathy, and attempts to impress her when he see hher, but she just scoffs at him, and soon Hareton drops his attempts and leaves the room whenever Cathy is there. Finally Nelly discovers that Cathy has been sneaking out, and promises not to scold her if she comes clean and tells the truth.
As time passes Edgar and Lintons health grow worse and worse, and Heathcliff rushes to try and unite Cathy and Linton before his son's much anticipated demise.