Winx story last power

Its winx last year at Alfea and they should be prepared to a new power Mystenix Farangonda tells them the power is so myteries that only fairies there had done alot of speciel things like save the world can get the power

So we can get this power said Stella yes but before you can get this power will you have to go inside the ghost cave over the dragon bridge and in the nymf forest and they dont like strangers said Faragonda