Use your imagination to suggest another ending to the above story.
This story could have had another ending where, after falling, Mr. Lamb gets seriously injured and Derry calls an ambulance and takes him to a hospital. When his mother comes to know of the accident, she allows Derry to take care of him in the hospital as well as after being discharged. While his stay with the old man, he reads his books, takes care of the garden and makes “friends” for life which changes his perspective to life completely. Later, he befriends a boy whose father is a plastic surgeon, who operates on him and makes his life return to normal.
(The above answer is only a sample provided for students' reference. It is strongly recommended that students prepare the answer on their own.)