If you haven't read the first two books please do so. The first book is 'dreaming of a demon' the second book is ' returning dreams'.
Lucy is back and ready to take on the circus with Ciel and Sebastian. But Sebastian and Ciel only remember her up until the curry festival. Everything from that point on has been erased from their memories.
Lucy must help Ciel and Sebastian with their new case as well as regain their trust. Along the way she has to find a way to get her love to fall in love with her all over again.
Note: if you haven't watched 'book of circus' there will be spoilers in this fanfic. You have been warned.