School for S.P.I.E.S # 2: Thicker Than Water by Bruce Hale

This sequel to Playing With Fire is a 2014 release, and I gave it a rating of four out of five. The orphanage/school may need to close, but Max is not going to let that happen. The spy students have an important mission to steal a mind-controlling device before the evil members of LOTUS get their hands on it. However, there may be a mole within the school, Max's father (a rogue spy) has reappeared, a pretty new girl has Max confused, and LOTUS wants Max to join their organization. To confuse things more, a billionaire may be willing to save the school, but an inspector may be ready to shut it down. It may be impossible to stop LOTUS without closing the orphanage.

Even though Max was trained to be a spy in his foster homes, his character still behaves like a confused teenager. The addition of the new, cute girl adds a conflict to Max's relationship with Cinnabar, another student. I always enjoy Wyatt's inventions, because they often have unexpected results.