"Don't do anything yet," Harry said, quickly conjuring his patronus and casting the charm again. He suddenly felt very urgent about it, worried that Tonks might rush off and do something without him approving it, even though she'd asked for his ideas. "I need to talk to the others. I know - I know that I got you involved, and I'm sorry. I just, I don't want anyone else to get hurt for my mistakes, it's bad enough Mr. Lovegood's already in danger because I didn't think."
He paused, then added, "Would it be safer, later, for me to contact you through Professor Lupin? I don't want to accidentally send a message to you at the Ministry."