Isa took a seat at her desk and propped her feet up. The thoughts of her day ran thru her mind. Satisfied with the day's events she smiled. She likes when she does not have to give any single event a second thought. Without paying much attention she picks up an envelope and rips it open. Inside there was a note folded in half. Odd way to mail a letter she thinks. When she opened the piece of it contained very short sentences. She looks at the return address and all that was written was science homework. But written as if the two words were a compound word. "sciencehomework" 

Beings Isa was somewhat interested in science she wanted to see what the kids these days are being taught in science. Realizing the contents were not relevant to science and must be some sort of code or clue language these kids have these days. She had to chuckle because this actually had her interest in a humorous way.

The object has been placed.

Isa immediately thought she would need more clues. The object could be any object. 

You have 24 hours.

In twenty-four hours, she will be getting her hair done. Followed up with having dinner with the crew.

Standard rules apply.

Convinced this is definitely at the wrong address but she decided to read on.

Multiple operators.

Now Isa thinks she is onto something. She decides to step outside to see if there was anyone around to get their input. 

I think these kids are taking their tricycles to school to be hidden in or near the janitor's room so not to be caught. The race is to commence in 24 hours and the usual rules apply. Multiple tricycles will partake. Fun way to spend recess, right?

Isa tosses the note and waits to hear what others have to say.

Ian had recently received a letter from his friend Isabella asking if he had gotten any strange messages from "sciencehomework". Ian, who had always loved studying science as a kid, wondered if someone was sending out science related puzzles to people for some secret prize. 

In fact he was curious enough to pay Isabella a visit and perhaps try to solve the puzzle together while they drank some coffee. He hadn't met her in a while so it would be a good excuse to meet his old friends back in Vegas. 

Ian took a flight to Vegas and arrived at Isabella's house by the next evening. He was greeted warmly as always and after exchanging pleasantries they sat down to look at the mysterious messages sent by "sciencehomework". 

"The object has been placed.

You have 24 hours.

Standard rules apply.

Multiple Operators."

Ian didn't know what to make of the puzzle. It had nothing to with science in the first place, and it was way past 24 hours by now. With Isabella guessing it was related to kids racing with their tricycles in school, Ian wondered if it was really the case. If it was, why was it sent to Isabella? He looked at Isabella with his eyes wide and asked,

"Do you have a secret child that goes to this school?! Are they about to get caught racing?"