Harry had indeed gone for an early morning run. It seemed like as good a way of starting his birthday as any. Anyway being stuck in that house with Grindelwald all week had not done anything for him physically. He felt cramped up; emotionally as well as physically. He'd gotten so used to being husband-and-father-Harry all day every day, that being Auror-Harry twenty-four-seven had taken some kind of toll. What he needed was fresh air. It was early, of course, but he never slept late when Ginny wasn't there.
He'd stopped at the gym instead of going home and had just unshrunk his journal from his pocket and checked it - somewhat optimistically for very early birthday messages - when he saw Ginny's writing. What he read made his blood run cold. He scribbled replies while trying with difficulty to put on the clothes he had started to take off in preparation for a shower. Then he ran.
He was just coming up to the front door when he heard the scream from inside. Swearing and panting, he burst through it, using his wand to open it before he was within three feet, hurtled into the living room, aimed and yelled without hesitation - "STUPIFY!"
The pale figure on the sofa fell back. Harry registered only then that he had been reaching, grasping in Ginny's direction. A shudder ran through him and he hurried to his wife, pulling her close. "Are you all right?" he demanded, even as he held her tight, the residual fear making him sound sharper than he meant. "Did he hurt you?"