Best friends Millie and Jess look just like twins! Millie is a princess
and Jess is a maid so they have lots of fun swapping dresses
and going on adventures around Peveril Palace. When a mysterious
monster appears in the lake in the dead of night, can the girls
uncover some clues and work out where it's come from? Don't miss
the girls' first, second and fourth adventures - THE CASE OF THE
STOLEN CROWN, THE SECRET OF THE SILK DRESS, THE HUNT FOR HIDDEN
TREASURE.