Don’t give up hope even if a couple of days have passed by since escape. She probably has found a good hiding place since they sleep during most of the day. A good trick that may work is to leave her cage open in the room where she escaped. This is so that she can smell her soiled bedding her food and treats that she likes. She will probably be hungry and possibly a little stressed so her own cage may represent a safe hiding place. You may wake up one morning to find her asleep in her cage again. But then this trick does not always work sadly to say.