He runs through the darken hallway clutching his newborn son to himself. His son, Nathan the only part of his wife he has left. The child sleeps eyelashes stark against damask cheeks. A moan rises in Harry's chest at the thought of what he is about to do. "I love you Nathan." He does and this - the gate has been breached wards finally collapsing under the unyielding onslaught.
Slipping through one of a dozen passageways he descends into the labyrinth beneath his home. Feeling the gearing up of the great array at it's center he moves faster and faster still. Above his head he feels the wards weakening as the Dark forces attack in droves. Severus is waiting ahead of him dark eyes alight with concern and - and sympathy. He holds the locket in his hand.
Panting as the child stirs with a mew. Hermione's voice raised high and beneath it Ron's entreating the powers-that-be intercede on their behalf. Albus's power is a great platinum whirlwind interlaced with ultramarine that floods the array in a steady circuit. Kingsley and Bill chant over Nathan as he stands in the corner looking so much like Harry it hurts. Only twenty-two and possibly facing his death today - twice over. The baby begins to wail in his father's arms causing Nathan to open his eyes.
The house has been breached and even now it is probably being swarmed by misguided children and the remnants of the old Deatheaters. Nathan is wailing pitifully as he is draped in the new, utterly familiar pink blanket the locket and letter tucked in beside him. Severus strokes a finger down the baby's cheek. "I'll see you soon enough little boy." And he will though little Nathan will never know it. The array is blinding, the space around it devoid of air and crushing in pressure.
"I love you Nathan." Harry steps forward holding the child before him like an offering. There are screams from overhead as the defenses and curses woven into the structure repel the fools that desecrate it. There is a great groan as though the house it's self moans in pain. The light reaches out for the terrified child. Chanting the final incantation Harry watches as he loses his infant son. From behind him he hears Nathan reassuring his godfather Draco that he'll be fine. Beside him the simulacrum takes a deep breath before jumping into the fading light. "Oh, Nathan I love you."
There is a silence and then the Labyrinth is breached by the Darkness.