What would happen if he somehow managed to find Rodolphus? She knew that Antonin would try to kill him without a single doubt in her mind, but would he be successful? Rodolphus hadn't made it that far in life without knowing how to take care of himself and his enemies. The moment he knew that Antonin knew his secret, he would be ready to kill. Whatever he had ultimately planned for Hermione, her husband would only be getting in the way. The evil animagus preferred when he was out of the picture completely.