"Harry, there's something you've got to see."

With those words, Hermione had grabbed his wrist and dragged him out of the chair in the Gryffindor common room where he'd been dozing. She had Lead him out past the Fat Lady's portrait and up and down corridors and staircases until they were standing outside a girl's restroom Harry recognized as the one haunted by Moaning Myrtle.

"Hermione, what—"

But she hadn't answered, she'd simply pulled him through the door. Harry stiffened. It wasn't as though he'd never been in Moaning Myrtle's bathroom before, but still, it was a girls restroom and he wished Hermione would at least tell him why they were there.

She marched him straight past Myrtle's stall and down to the stall on the very end, where she stood aside and shoved him into the tiny space. Grasping his shoulders, she turned him to face one of the stall's walls, and then she was gone.

It was covered in graffiti. For fifty or even a hundred years, girls had been scrawling messages on the walls of this bathroom, something boys rarely did to their own WCs, and Harry found this mildly amusing. But what had Hermione been so insistant about? Dolores is a meanie, read one line. Andie and Ted Forever, read another.

Then he saw it.

The initials L.E.&J.P. with a heart drawn around them.

Harry's heart stopped. He knew whose initials those were. At some point in the past, his mother had stood where he was standing now and declared her love for his father to the entire female population of the school by announcing it on the bathroom wall.

Quickly he started looking to see if there were any other messages in the same writing, and he found one down near the floor: Lily was here.

In a daze he returned to the common room, walking right past Ron and Hermione on his way up to the dormitory. "Hey, where'd you go?" asked Ron as he passed. "I went up for a minute to get that book and—and—Harry?"

Hermione stomped on his foot as Harry walked up the stairs without answering. He retrieved his quill and a pot of ink from his schoolbag, and then retraced his steps.

Below Lily's message, he added his own, not caring that girls in the future might find it odd to see this sign of a boy's presence in their restroom.

Lily was here

So was Harry