Save yourself.
Those were the last words Ginny heard from Harry's mouth before he died again. When she hears he died again at the hands of Lucius Malfoy, she ran into their room -her room now- and cried and cried for hours, wondering if she'll never stop. She thinks about how her man, her husband had died and the last thought he had before it, and about how she'll ever live without him. He was the one who calmed her in times of distress, made her laugh in times of madness, and how his smile would cheer her up when she was sad. She thought she would never be happy again with him gone.
It is now 3 months later, and she hasn't gone anywhere, hasn't seen anyone, but just cried in her room every day. She's been rereading her childhood diary over and over again and has been mourning over pictures of Harry and of Harry and her together. In the middle of a flashback of her wedding with Harry, she heard a voice much like Harry's in her head.
"Hi, love." the voice says. Ginny's not sure if it's Harry or not.
"Hi...?" Ginny says.
"Hey, I heard from Hades that you weren't feeling good so I came to check on you, Gin." He says. It is Harry! Ginny starts frantically asking questions like "How did you survive? Why didn't you come back? Are you alive?" and Harry is overwhelmed.
"Hey, Gin. Only one question at a time, but I did survive, I couldn't come back, and yes, I'm still alive."
"Okay. Where are you?"
"In the underworld."
"Could me and the kids come?"
"If you go through the Styx."
"What's that?"
"It's the river that transports you to the underworld. If you sink into it, you'll still be alive, like me, but you'll be able to see me and see my parents."
"Okay, where is it?"
"It's in Athens, Greece by Mici's Parlor in the ocean."
"Okay. See you there."
"Alright. I love you."
"I love you, too. Bye."
"Bye." and with that, Harry left.