An andiron is a special tool that helps hold wood logs while they are burning in a fireplace. It looks like two little legs with a bar connecting them that sits inside the fire. Think of it like a chair for the logs to sit on while they burn. Andirons usually have a pointy end that sticks into the ground of the fire to keep them from moving around. This helps make sure that the fire stays safe and doesn't spread in the fireplace. Overall, an andiron is a very helpful tool for keeping the fire going and making sure the flames stay under control.