Six months after the marriage Heathcliff returns as a gentleman , having grown stronger and richer during his absence. Catherine is delighted to see him although Edgar is not so keen. Isabella, now eighteen ,falls madly in love with Heathcliff , seeing him as a romantic hero. He despises her but encouraged the infactuation, seeing it as a chance for revenge on Edgar. When he embraces Isabella one day at the grange, there is an argument with Edgar which causes Catherine to lock herself in her room and fall ill. Heathcliff has been staying at the Heights , gambling with Hindley and teaching Hareton bad habits. Hindley is gradually losing his wealth , mortgaging the farmhouse to Heathcliff to repay his debts. While Catherine is I'll Heathcliff elopes with Isabella causing Edgar to disown his sister. The fugitives marry and returns two months later to wuthering Heights. Heathcliff hears that Catherine is ill and arranges with Ellen to visit her in secret. In the eraly hours of the day after their meeting Catherine gives birth to her daughter , Cathy , and then dies. The day after Catherine's funeral Isabella flees Heathcliff and escapes to the south of England where she eventually gives birth to Linton, Heathcliff's son. Hindley dies six months after his sister and Heathcliff finds himself the master of wuthering Heights and the guardian of Hareton.