Let your imagination run wild, and you'll be sure to find... Barbie! She can do things and go places that others only dream of. Whether she's a member of royalty from long ago or a mermaid living under the sea, Barbie still knows how to be the best friend ever! One minute, Barbie and Christie are touring an Egyptian tomb. The next, the two are princesses living in ancient times. There, they secretly journey to see the sphinx being built - and change the face of history!