I absolutely love how Perenelle has just had her own entirely separate side plot going on for three entire books. she got kidnapped 20 pages into book one and we've just been occasionally checking in on her for three books to find out she's absolutely kicking ass all on her own, then we go back to the main plot where Flamel and the twins are amongst multiple other very skilled people and still struggling and constantly almost dying

the author said Perenelle was much more dangerous and powerful than Flamel and then he proved it. if it had been Flamel kidnapped and Perenelle with the kids they would've already mastered all the magics and defeated the Dark Elders by now