Dinah was known to be the only cause of the fire. She was seen in Alice's home close to the fireplace when she stretched and gently bumped a stack of books. Her action caused the books to tumble and collide with several other objects including a lamp. The lamp broke and spilled into the fire, causing the blaze to move from its current position and burn the home. The feline was seen with Alice as the latter was leaving Rutledge Asylum.
It turned out Dinah had a role in the fire, but she was not the cause of it at all. Dinah had saved Alice's life by showing her the only safe way to escape the house was to leap out the window. It was revealed the house fire had been started by Alice's psychiatrist, Dr. Angus Bumby, a rapist who killed Alice's sister Elizabeth Liddell before starting the fire.