Power transfer

"We did it."

"Look like my guess is true. The more family members, the stronger the power."

"Father, now I have complete control over that Auror. I can make him bring us out of here."

"Then after that?"

"Uhm... we'll kill Harry Potter and rule the world?"

"I once had a bunch of **** Eaters and an army of monsters at my disposal, yet I still failed. I have learned many lessons."

"Then what should we do?"

"Fix everything from the roots. I have a second chance and I won't waste it."

"You mean traveling into the past?"

"Yes, like you do. As the Time-Turner has been destroyed, no one can stop us."

"As you wish, father."

After choosing the words, Delphini spoke: "I wish my father's memory will be transferred to his 18-years-old self, along with this power."