One day, Mary saw a boy sitting under a tree, his name Dickson. Seem he look like can be trust, Mary talk about the secret garden to him. Mary bring him to the secret garden & they both work together to clear the weeds & the dead wood.
At the same night, Mary meet Mr Craven's son, Colin whom she always hear cry every night. Because he always ill, he stay in bed & never meet people beside his servant. Two of them know each other that night.
Later, when Mary remembered how lonely Colin was, she felt sorry for him. Mary talk about Colin to Dickson & they bring him to the secret garden. Colin seem surprised & want to come back there every day.