A hail mary

With Catherine asleep, if Henry didn't approach this carefully, it could all go wrong. After all, she was already hesitant, and he didn't want that to double down.

She was a Knight of Seiros. Maybe he could use that somehow...

So, on a whim, Henry said in a bit more of a mystical-sounding voice, "Catherine, I am the goddess Seiros."

"Seiros?" Catherine said in a sleepy voice, yet still not waking.

"Yes," Henry said. "Trust Henry. I have put him here to assist all my children, including you."

"I...I guess if he's here as part of your will," Catherine said.

"Open your mind to him," Henry said. "Be receptive, obedient, as you are to me."