"That’s settled then," Harry nodded as the spell infused them with pulsing intent. "You go to Cesc ... I think your very presence might be a barrier against Ginny. Have fun with her, play with her, make her joyous ... Death Eaters hate pure happiness, it physically hurts them ... it will torture Ginny and Bella and Draco if they try and break into her mind when she’s so blissful."