The embalmed heart of Louis XVII

The light is dim, and the glass jar weighs more than you expected. Inside, suspended in a yellowish liquid, rests a small, dark heart, wrinkled by time but still recognizable. It beats only in your imagination.
You know perfectly well what it is.
The heart of Louis XVII, the boy who never got to rule. A relic of the French Revolution, kept by the surgeon Philippe-Jean Pelletan… until you took it.
Your hands tremble slightly as you look at the jar.
The heart is small, shrunken from alcohol and age, a dark brown, almost black in the shadows. Its surface seems wrinkled and fragile, as if it might fall apart if the bottle breaks.
Nobody saw you… at least that’s what you think.
But now a problem arises that you didn't think of before.
It's not a piece of jewelry you can easily sell.
It's not just any object that you can leave anywhere.
It is the heart of a dead prince.
The silence in the room becomes heavy as you look at the jar again.
You could return it.
You could hide it.
Or maybe keep it... and become the only one who knows where it is.
What do you plan to do now?

You are a heart, you don't speak