It was the afternoon on Halloween. Sid and his classmates couldn't stop talking about Halloween since the first day of October. Arnold really didn't talk a lot about Halloween like the rest of his classmates did, but it would be fun to do some trick – or – treating with his friends.

Today was different. Mr. Simmons was nice enough to let the class celebrate Halloween with him for today. At least Sid had trouble concentrating on his schoolwork since he was too busy thinking about tonight.

When it was time for lunch, Sid still couldn't pay any attention to what his friends were talking about their plans on tonight.

"Earth to Sid," Stinky said.

Sid finally started paying attention to his friends.

"Yeah, what is it?" Sid asked.

He'd been busy thinking and wasn't involved in his friends' conversations.

Even Arnold was there.

"Are you all right, Sid?" Arnold asked.

Sid looked at Arnold and finally answered, "I'm okay. Really," he reassured his friends.

"I don't know. You had a weird look on your face," Arnold said.

Everyone agreed.

"I saw you weren't even paying any attention to anything Mr. Simmons was talking about," Gerald spoke up.

"Tall hair boy is right about something for once," Helga replied.

"What's been on your mind that you couldn't focus on schoolwork, Sid?" Harold asked.

Like the rest of his friends, he was also curious about why his friend wasn't listening this morning.

"Oh, I was only thinking."

"About what?" Arnold asked.

"Halloween, of course. I've been trying to come up with something for tonight. I happen to think it just might work."

"Why don't you tell us your plan?" Harold asked.

"I can't, Harold. If I tell, it won't be a surprise, but only one of you will be involved."

"You better pick fast," Gerald told him.

"I'm thinking. Whoever has the shortest straw is going to know what my plan for tonight."

"Are you crazy? What a dumb idea," Helga told Sid.

She thought to herself, This better be good. I hope he comes up with something to scare the football head.'