When Jacob came back to school after the holidays, Umbridge was even worse. She had first observed all the fifth year Gryffindor classes, driving teachers and students crazy. After that, she watched all the seventh year classes. Finally, she started watching all the fifth year Ravenclaw classes.
The first class Jacob had to deal with her was Transfiguration. Professor McGonagall ignored Umbridge and taught the class what their assignment for the day. The second Jacob finished his, McGonagall told him his next task.
"Ahem," Umbridge said. "Is it wise to have him go ahead?"
"Yes it is," Professor McGonagall told her. "Jacob is on a higher level than the rest of the school and it's not fair to hold him back."
"Don't you believe in following the curriculum?" Umbridge asked.
Before Professor McGonagall could answer, Umbridge was dangling upside-down in front of the classroom from a rope held to the ceiling.
"Any requests?" Jacob asked.
"Show Professor McGonagall the idiot," urged a classmate.
Umbridge immediately started dancing around the classroom singing, "I am an idiot."
"Don't you get in trouble when you do that?" Professor McGonagall asked shocked.
"Of course not," Jacob said. "I plant a false memory in her mind of a perfectly behaved class where she taught her entire lesson. I don't always do the same spells. I take requests from classmates. Do you have any requests?"
"Did you ever try human transfiguration?" Professor McGonagall asked.
Umbridge turned into a toad and started hopping around the room. The whole class laughed.
"Now change her back," urged Professor McGonagall.
The toad disappeared and Umbridge reappeared.
"You're really not supposed to be hexing a teacher," reprimanded Professor McGonagall, "but we all know she deserves it. Could you remove the imperious curse and put a good memory of her observation today?"
Jacob did.
"You seem to have control over this class," Umbridge said. "The learning is aligned with the curriculum and all students were on target."
She left the room.
"Ten points to Ravenclaw for successful human transfiguration," Professor McGonagall said.
The next time Umbridge observed Jacob's class was during Charms. Jacob finished his charm first, and Professor Flitwick told him another charm to do.
"Is it wise to have him go ahead?" Umbridge asked.
"Yes it is," Professor Flitwick said. "He's going to do more advanced charms anyway so he may as well learn to do it correctly."
"What about the curriculum?" Umbridge asked.
Before Professor Flitwick could answer, Umbridge was dancing around the room singing, "I am an idiot."
"You're not supposed to do unforgivable curses," Professor Flitwick said.
"I don't always," Jacob told him. "I take requests from my classmates for any hex, curse, charm or transfiguration. At the end of each class, I remove the memory and replace it with a perfectly behaved class."
"Can I see?" asked Professor Flitwick.
Jacob lifted the curse.
"You're class is very orderly and advanced," Umbridge said. "Keep up the good work."
She walked out of the room.
"Fifty points to Ravenclaw," Professor Flitwick said. "Putting in false memories is very advanced magic that most people can't do."
When Umbridge observed Potions class, Jacob realized it would be the first time the Hufflepuffs saw his Umbridge treatment. He waited for Umbridge to deserve it and started his potion.
"Not in your mouth Jacob," Professor Snape said.
"Do you think it's wise to have such a disabled child in class?" Umbridge asked.
Professor Snape glared but started laughing as Umbridge danced around the room singing "I am an idiot."
The Hufflepuffs were rolling on the floor laughing. They never realized this was how the Ravenclaws survived Umbridge's class. Professor Snape stopped laughing and glared at Jacob.
"Five points from Ravenclaw!" he snapped. "Don't ever make me laugh in class again."
The Hufflepuffs continued laughing.
"Five points from Hufflepuff!" said Professor Snape. "Stop that silly laughing. The Ravenclaws are able to remain serious."
"That's because we saw this every day for the whole year and get the opportunity to put in requests for Umbridge's behavior," one cheeky Ravenclaw said.
"And what happens at the end of class?" asked Professor Snape.
"I remove the memory and plant one of a perfectly behaved class instead," Jacob said.
"Make her think I'm the best teacher in the school," Professor Snape said. "I don't want to see her down here again."
"It's very nice to see such competency," Umbridge said. "You are the example of a perfect teacher. I wish all teachers maintained your high standards."
She walked out of the room.
"Five points for Ravenclaw," Professor Snape said. "Now get back to your potions."
Jacob had Herbology with Slytherin. Because many Slytherins were on the inquisition squad, several Ravenclaws advised Jacob to try to behave this time. Umbridge sat quietly in the back of the greenhouse.
"Be gentle with your plant Jacob," reminded Professor Sprout. "The leaves are vital and should not be torn."
"Do you think Jacob belongs in this class?" asked Umbridge.
She immediately started dancing around the greenhouse singing, "I am an idiot."
The slytherins all started laughing. One brave member of the inquisition squad approached Jacob.
"I'm deducting points for this," he said. Before he got the chance, he was marching behind Umbridge and chanting along with her.
"It's one thing to curse Umbridge, but you can't curse your fellow students," Professor Sprout said.
Jacob removed the curses and modified memories.
"Good class," Umbridge said as she left the greenhouse. "Those Ravenclaws are really doing a good job, and you were very patient with the Slytherins. If they wouldn't be so squeamish, they would be very good at herbology."
After that, Jacob only saw Umbridge during Defense Against Dark Arts where he controlled the class.