Sibylla's Cave

Sibylla's Cave is the home of Sibylla, the Major Fairy of Justice and her followers, the Rustic Fairies. It is located in the Sibillini Mountains. In here, magic is completely neutralized and where the Wizards of the Black Circle received refuge from the Warrior Fairies. The cave is guarded by a large fish and the Rustic Fairies.

As it is a haven, Earth Fairies are not permitted entry as are those who have ill intentions.

Season 4

 * Winx Club - Episode 421
 * Winx Club - Episode 422
 * Winx Club - Episode 423
 * Winx Club - Episode 424
 * Winx Club - Episode 426

Trivia

 * There is a plot hole pertaining to Earth Fairies prohibited entry, Roxy herself is an Earth Fairy but was able to enter the cave.