Bet's mom, Alice, was a very skilled witch who had passed through a lot of adventures and funny situations because of her powers. She even learned to put his magic life aside and started to give more importance to having a normal life with her family. She occasionally used her magic power but just for trivial stuff and when she's pretty bored.
None of her children was as skilled in magic as her, so from several years in advance she had prepared some spells to protect them from any threat that could affect them. Bet was now a teenager who has distanced from her mother and use to hang out with her friends, her boyfriend and stuff from a normal girl her age. In the past, she was very close to find about her mother's magic powers but she ended up ignoring any weird thing happening in her life.
On the other hand there was Carl who had recently turned 9 years old. He didn't have too many friends but he likes to play several sports so he was kind of popular and liked by a lot of people, including his teachers and neighbors. Most of the time, he stayed at home playing soccer or football in his backyard. As Alice's husband works out of the town, they're just she and her son almost everyday.
One of Alice's favorite spell was the memory one that she can use to rewrite memories on people or make them forget about things she didn't want them to know. She used that spell a lot on Carl who was like a bull's-eye for his mother's magic. Sometimes intentional, sometimes accidental. He has become invisible, a dog, a monster, clothing, traveled through the digital world, turned smaller than an ant, switched minds with an old man in the neighbor and a lot more.
Of course, Alice had fixed everything at the end of the day, and Carl didn't remember anything about that, even when sometimes he had admitted he enjoyed being transformed by his mother. But she didn't want to risk their peaceful lifestyle and she prefers that Carl didn't know about her witch nature. That day however, Bet was going to get into a big trouble and she would need Carl's support to solve the problem.