Why can young Catherine not correspond with Linton anymore?
Young Catherine is out walking with Nelly when one day when she runs into Heathcliff and Hareton. Heathcliff tells her that Hareton is not his son, but he does have a son and maybe some day his son will marry Catherine.
At Thrushcross Grange the next day, Catherine tells her father Edgar about her visit and demands to know why he has kept the news about her cousins secret from her. Edgar tries to explain, and eventually Catherine comes to understand his disdain for Heathcliff. Although Edgar gently asks Catherine not to have any contact with Linton, Catherine exchanges letters with him secretly. Nelly discovers the letters, though, and, much to Catherine’s dismay, destroys Linton’s letters to her. She then sends a note to Wuthering Heights requesting that Linton stop writing to Catherine. Nelly does not tell Edgar to the developing relationship between Catherine and Linton.
Heathcliff blames Catherine for not writing any more letters. He thinks itwas all her idea to stop writing. He tells Catherine that she has hurt Linton's feelings and that she should visit him. Eventually, Catherine starts visiting Linton secretly at night. Nelly finds out, tells Edgar, and Edgar forbids Catherine to visit with Linton, but agrees that Linton can come to Thrushcross Grange to visit Catherine there. Edgar is growing increasingly ill, however. Linton is also ill and both eventually die.