Bridge to Terabithia
They were always nice to Jess when he went over, but then they would suddenly begin talking about French politics or string quartets (which he at first thought was a square box made out of string), or how to save the timber wolves or redwoods or singing whales, and he was scared to open his mouth and show once and for all how dumb he was.
He wasn't comfortable having Leslie at his house either. (4.136-137)
Leslie took a deep breath. "This is not an ordinary place," she whispered. "Even the rulers of Terabithia come into it only at times of greatest sorrow or of greatest joy. We must strive to keep it sacred. It would not do to disturb the Spirits." (4.146)
Leslie gave a deep satisfied sigh. "I love this room," she said. "Don't you feel the golden enchantment of it? It is worthy to be" – Jess looked up in sudden alarm – "in a palace." Relief. In such a mood, a person might even let a sworn secret slip. But she hadn't […] Terabithia was still just for the two of them. (7.27)