Rook the Silent Sentinel

At the heart of the Menagerie stands an ancient carousel.
Its origins have long since been forgotten. No records speak of its creation, no living soul recalls a time before its song. Painted creatures drift upon its endless rotation, their glass eyes blinking beneath moonlight, while a haunting melody spills from its gilded frame and winds through the forest beyond.
Rook is the structures silent keeper.
The gentle heartbeat within his chest beats in perfect time with the carousel's song. One cannot tell where one ends and the other begins. Some say the carousel taught his heart to beat. Others insist it was Rook's heart that first taught the carousel to sing. Neither is likely true, but not a single soul feels the need to seek the truth behind Rooks origin - the bond between them is far too sacred.
However, Rook is not the first Sentinel.
Long before him, another stood at the carousel's side, tending its creatures, oiling its ancient gears, and guarding its secrets. One day, when Rook's watch has ended, another will take his place. Such is the birthright of the Sentinels - sacred lineage woven into the very bones of the carnival itself.
Each night he walks the platform in silent devotion, gathering wandering carousel beasts and guiding them gently home. He brushes leaves from painted wings, untangles ribbons caught in brass gears, and listens to the melody as though it were speaking directly to him.
Perhaps it is.
Visitors rarely notice him at first. He stands so still beside the turning carousel that many mistake him for part of it. Yet those who linger long enough may catch the glow of ruby eyes watching from the shadows, patient and unwavering.
For as long as the carousel turns, Rook will remain, and for as long as Rook holds his post, the music will never fade.