Frieza once had a son, his name was Vegeta, not the Vegeta you were thinking off, Another Vegeta, but he died and it was no ones fault, not even Friezas. But when he died Frieza saw Prince Vegeta, the one you are thinking off, and Frieza has to have him.
Tonks has to live at the Malfoys as their maid because of her mothers 'fears' but what happens to her now! The malfoys will give her a potion to get rid of her 'bad memorys' What will happen to her.