Hidden in the Caverns below Cackles itself is Merlin's Chamber. in it lies a riddle devised by the great Master himself. whoever can solve it will be heir to the power of Merlin himself! for centuries many have tried and failed to solve the riddle. What happens when it's discovered that the Worst Witch in the school succeeded where even the great wizard failed.

Pentangle's is forced to merge with Cackle's. How will both teachers and students deal with this change?

Ethel is at home for the summer hoildays and her feelings of being ignored by her parents increase. Her sister tries to reach out to her but is always met with Ethel pushing her away. What will happen when Ethel starts to go downhill and will anyone notice her cry for help? Set in 2017 reboot.

Miss Hardbroom's cat, Morgana, is accidentally turned into a little girl. Hilarity ensues. Can Constance cope with her newfound "daughter"? How can Ethel and Mildred fix the situation before it spirals out of control?