The answer is 'his hair turns grayer' - that is the physical change which took place in the spirit of Christmas present from when he first appears in the story to when he leaves.
<span>The answer would be Boyhood. This is the second novel in Leo Tolstoy's autobiographical or first-person trilogy, the first one is Childhood and it is followed by Youth. The novel was first available in the Russian fictional journal Sovremennik in 1854.</span>
