John Bonhomme Jr.

The book just suddenly picked up the pace. This reminded me of like when the labyrinth moves slowly until all of a sudden jumps very quickly. The book imitated this pattern in a way. At some points in the book it feel like the story is not moving at all. But in some chapters, such as these, the book really picks up the pace very quickly. Chapters XVII-XX give a lot of insight to some unanswered questions. Deliah is a little girl who Will photographed before she was killed by a human eating voulcher. This photo was Will's most renown photo, but it still haunts him. He can never forgive himself for not saving that little girl, instead of taking the photo. This is one of the reasons he goes back into the house. He says that to this day he wished he did a heroic act such as the one Tom did for his daughter Daisy. Johnny Truant has packed his bags and moved on with his life. He gathered up some money and decided to get out of the house. His "friend" Lude is in the hospital and appears to be in horrible condition. Johnny out of the kindness of his heart leave 500 dollars under Lude's door, which he will never get.
Questions
How did Will read the House of Leaves when the book is about him?
Why can't Karen find the hallway?
How can Karen hear him?