"Assigned to attend her archnemesis Mackenzie Hollister's new school for the student exchange week program, Nikki is surprised to learn that there are students at the school even meaner than Mackenzie"--OCLC.
Izzy and her family welcome foreign exchange student Alberto into their home, but after a series of mishaps and coincidences, and with a serial killer on the loose, Izzy begins to suspect Alberto is not who he seems.
"Forced to hide her new-found magic, Myra enrolls in an interplanetary academy exchange program to dig up more about the government's many conspiracies"--