In this hilarious illustrated middle grade novel in the vein of Diary of a Wimpy Kid and Matt Sprouts and the Curse of the Ten Broken Toes,a boy’s time-travelling older self gives him an impossible mission: convince his class to be nice to their substitute teacher…or risk the fate of the world. Ethan seems like a normal ten-year-oldbut he has a secret. It’s not that he’s the one who accidentally filled the sunblock container with glue last summer or that he cracked the screen on his sister’s phone and blamed it on their baby brother. (Those things may have happenedbut they’ve got nothing on this.) NoEthan’s secret is that he knows time travel is real—because his future self keeps coming back to visit him. Lucky Ethanright? Wrong. Because when Ethan’s future self shows uphe tends to bring bad newsand he’s kind of bossy. (Not to mention he’s always wearing super weird clothes.) This time aroundhe’s asking Ethan to do one simple thing: make sure today’s substitute teacher doesn’t quitor else one day she’ll become an evil dictator who will destroy the planet. But his future self clearly forgot what fourth grade is likebecause if there’s one thing Ethan’s class is great at (other than losing their homework)it’s tormenting substitute teachers…