She's such a darling girl, how could that sweet face do something so naughty?
Princess chewed a hole on our dry wall too, she was about 7 months old. Vet said it could be a combo of separation anxiety & teething. When I had to work, I connected 2 ex-pens together & made a large area for them to stay in, so she couldn't chew on the wall. She never did it again.