Disclaimer: Through some inexplicable oversight, I am not J. K. Rowling.
Hermione smiled to herself as she stood before the mended white tomb. Ever since Godric's Hollow, the idea had nagged at her that something was missing from it – that Dumbledore's grave ought to be marked as he had marked the Potters'; then Harry had revealed the Headmaster's self-sacrifice, and Hermione had suddenly known what words belonged there – the perfect match. And McGonagall, when she'd told her, had agreed.
She raised her wand, and spoke the spell. A flash, and a new engraving gleamed upon the marble:
29 June 1898 – 4 June 1997
"Death is swallowed up in victory."