We last left Nikola at the Plaskington International Laboratory School safe and sound, but we knew the Old Ones were coming for her, especially after thwarting Tabbabitha's cunning plan and, well, killing Tabbabitha (ouch!).
On cue, in steps Jakki, the relentless Old One Queen who tracks down Nikola and takes over her brain, even as Nikola sneaks out to find another Old One who mysteriously doesn't smell disgusting -- she smells like freshly baked bread. And, she isn't a total narcissistic psychopath. She works part-time at the Dairy Shed and is just trying to support herself. The real question is, is she trustworthy -- unlike all her sisters -- and will she help Nikola and her Dad escape Jakki's clutches before their brains turn to mush?
I won't spoil how it ends, or the plot set-up for a third book at the end (which takes a decidedly nasty turn, but you knew that was possible -- the Old Ones aren't exactly nice), which was truly divine. We enjoyed this read immensely.