How do paragraphs 69-70 develop readers understanding of the children? (see paragraphs below) *

He didn’t answer Lydia. Preoccupied, he let the lights glow softly on ahead of him, extinguish behind him as he padded to the nursery door. He listened against it. Far away, a lion roared. He unlocked the door and opened it. Just before he stepped inside, he heard a faraway scream. And then another roar from the lions, which subsided quickly. He stepped into Africa. How many times in the last year had he opened this door and found Wonderland, Alice, the Mock Turtle, or Aladdin and his Magical Lamp, or Jack Pumpkinhead of Oz, or Dr. Doolittle, or the cow jumping over a very real-appearing moon. All the delightful contraptions of a make-believe world. How often had he seen Pegasus flying in the sky ceiling, or seen fountains of red fireworks, or heard angel voices singing.

But now, is yellow hot Africa, this bake oven with murder in the heat. Perhaps Lydia was right. Perhaps they needed a little vacation from the fantasy which was growing a bit too real for ten-year-old children. It was all right to exercise one’s mind with gymnastic fantasies, but when the lively child mind settled on one pattern...? It seemed that, at a distance, for the past month, he had heard lions roaring, and smelled their strong odor seeping as far away as his study door. But, being busy, he had paid it no attention.