Nobody knew how old he was. Not even him. He had stopped counting birthdays somewhere around the time the great oak tree at the edge of the meadow was a seedling, and the great oak tree was now so old it had grown a second trunk out of loneliness. The animals called him simply Oldest, and that was more than enough.

Oldest moved very slowly. Not because his legs were weak — they were quite strong, actually — but because he had learned, over the long long years, that there was no advantage to hurrying. The world would still be there. It had always been there. It would go on being there.

He rested on a warm flat stone in the desert, as he did every night, with the stars coming out one by one above him and the sand cooling slowly beneath his feet. And every night, as the darkness deepened, his shell would begin to glow.

One warm night, a little girl named Wren — eight years old, bare feet, a long plait down her back — came wandering out to the desert edge. She couldn’t sleep. She had tried everything her grandmother had suggested: warm milk, counting backwards from one hundred, thinking of something pleasant. Her brain simply refused to stop.

She sat down on a rock near Oldest and looked at him for a long time.

Oldest turned one heavy-lidded eye toward her. He blinked once, very slowly.

Oldest was quiet for a long moment. A shooting star crossed the sky above them.

Wren looked at the soft glow coming from his shell. Each little hexagonal plate pulsed with a different light. It was the most beautiful thing she had ever seen.

Oldest was quiet again. He breathed — in, out, very slowly — the way only very old things breathe.

He lowered his great head until his chin nearly touched the warm stone. Then — very slowly — one of the plates on his shell lifted just slightly, like a door, and something warm and golden and impossibly old drifted upward on the night air.

It was barely visible. Just a shimmer, like heat above sand. It drifted toward Wren and landed, light as a feather, on her eyelids.

She felt it immediately: warmth spreading from her eyelids down through her whole body, reaching her fingers and her toes, filling her chest like a breath let out after a long time holding. The feeling of being exactly where she was meant to be. Her shoulders, which had been hunched up near her ears, dropped. Her hands unclenched in her lap.

She lay back on the warm rock, looking up at the stars. They were moving, very slightly. Or perhaps she was. She couldn’t quite tell.

Her eyes grew heavy.

Oldest blinked once, slowly.

And Wren smiled — and slept — under the ancient stars, on the warm stone, with Oldest keeping slow and steady watch beside her, his shell glowing softly with the dreams of six hundred years.

Some things take a very long time.
That is not a problem. That is the whole point.