Niko and his friends have a funny feeling about their new substitute teacher. First Mr. Reynolds asks their classmates to use their unique superpowers to practice breaking into a safe. Then an online mug shot seems to show a striking resemblance between their substitute and a criminal kingpin. Is Mr. Reynolds really a supervillain in disguise? And if he is, how can Niko and his friends foil the super-sneaky substitute’s evil plans? Young readers will find out in this fun and funny chapter book bursting with colorful comic book-style illustrations.
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