The Unintentional Time Travelers Guide To Other Worlds And Other Dimensions

Aurora Bradley refused to believe she was surrounded by fairies, elves, sorcerers, and a boy turned into a talking cat as a result of a curse which went wrong, the first time she found herself in an alternative world called the Five Kingdoms after she accidently passed through a hidden time portal at the end of her aunt's garden. When she eventually escaped from it, she had no memory of ever having been there at all.
Now, after encountering the same boy turned into a talking cat she didn't believe in before at her aunt's house, and fleeing from him through the same time portal, she finds herself back in the Five Kingdoms, with no memory of ever having been there before. So why do people she's sure she's never met before seem to know her name and believe she's there to honour a promise to one of them she doesn't remember ever making? And how, if ever, is she going to find her way back to her own world a second time?