An E.Q.U.E.S.T.R.I.A Spies story

In an alternate dimension: What if Lightning met the Rainbooms during the time Princess Twilight came to the school? Lightning Star is a new student at CHS, after having to transfer again on account of someone finding out her secret as a spy in her old school. Karly Crystal, who is one of the only people who still knows this secret, transfers along with her, to be by her side. They are nervous upon entering and starting a new chapter in their lives, but before they can commence, a strange girl and her dog come out of the front statue of the school, which is revealed to be a magic portal. There, they explain that they are both a pony princess and dragon from an alternate world and that they are pursuing a thief that stole her crown. Now, Lightning and Karly must join this stranger on her epic quest around CHS to save her world, meeting many new characters who can also help them.