Lillian's bedroom

Keeps telling me to use inventory. In there I have cloack, sickle, ring and spell.
I am also missing a piece of candle, so until find it, can't go to mirror. Have tried using all inventory but can't progress. Any help here please?

use sickle on the left candle and get the last piece. then go to the mirror and use the candle there. then use the spell there.