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She has never been one to be bitter, but on her deathbed, she thinks it is justified. So long as she never speaks of it, never gives her thoughts away, it can do no harm.
Nobody will remember her now, of course. Everybody will only remember Godric Gryffindor and Salazar Slytherin, the two men, the two rivals who created two Houses that are as different as fire and water, as earth and sky. Nobody will ever think of the space in between, separating the two. Or linking them. Whichever you like.
Nobody will ever remember that it was Rowena Ravenclaw who first envisioned a school of true grandeur, with towers reaching into the heavens and dungeons deep in the earth, with buildings sprawled across land that invited the mind to wander, to think, to reason, to learn.
She was the one who found the only location in all the land that was suitable for a school of such magnificence. She alone was familiar enough with the land of her birth, she alone travelled to the place she knew her Hogwarts School of Witchcraft and Wizardry would be.
She was the one who designed the castle, creating the towers from her dreams, enchanting the hundreds of staircases, leaving a trace of her famous wit in the staircases leading to the girls' dormitories. She always did say that women were more trustworthy than men. But she also thought that the witches of Hogwarts might need that protection some day, that reminder of their worth as witches, as the equals of their male counterparts. She doesn't know what's coming for them after she's gone, and she hates that.
She was the one who made Hogwarts Unplottable, she alone was the one who built the protective wards around the castle and the grounds. Nobody else, not even Salazar Slytherin, for all his cleverness and cunning, had the knowledge to do so. They will last for millennia, those wards, protecting the students and teachers who will come to Hogwarts, even after her death. He protection will last for centuries. Nobody will ever know what it cost her to protect them.
She was the one to expand the library of Hogwarts to the finest and most expansive collection of books seen so far in the world; she was the one to decide what to teach, to whom and when; she was the one who gave her painstakingly-collected wisdom freely to all who came to learn.
Because, after all, Hogwarts is, for all the different values and morals of the Houses, a school.
A place where the knowledge that she so prizes – her knowledge – will be passed down for millennia.
A place that is the living embodiment of the values of her house and, indeed, herself.
Her last thought is for her cheerful, sunny, good-natured sister, for the sheer hard work she did to build Hogwarts from a dream, for her unwavering trust, staunch loyalty and true friendship.
Sorrow, too, she won't be remembered either.