The clock ticked. Students sighed and scribbled. Some looked to the sides. Some looked upwards. Eyes flicked around the room constantly. Internally many students pleaded for some kind of inspiration. What was a covalent bond again? How did they work out the percentage yield of ammonia? Why on earth were diamonds so strong? Arianna Holmes was bored. She'd finished the 45 minute long chemistry exam in just under fifteen minutes. She hadn't bothered to check. She'd solved her first case at the age of seven.

The half of her that was Sherlock encouraged her to walk out or perhaps create a mini trebuchet with the stationary lying discarded on her desk. The half of her that was John tried to tell her to sit and doodle on the paper- anything but be disruptive. In the end Arianna starts doodling. She decides that she does actually want to pass chemistry.

The doodle gets boring. It occurs to Arianna that it's too hot. She takes a sip of lukewarm water. She fidgets. The clock says fifteen minutes. The invigilators pace the hall. One stands in the cool breeze of the door. Never had Arianna felt so jealous. She distracts herself by turning the bits on her desk into a tower.

"One minute." The voice makes Arianna jump. It's almost impossible to know where the it came from. Arianna entertains herself for the final thirty seconds by deducing it came from the woman at the door.

X

"How did it go?" John asks as she gets in the door.

"Easy. Boring."

"Yes, I don't know why they don't teach you how to make bombs for GCSE science instead." Sherlock chips in from the sofa.

"Don't be ridiculous Dad, I can already do that."

"Yes. I remember. Don't do it again. We've already had to pay for damages once." John mutters. "You didn't walk out again did you?"

"That was once. No-one cares about SATs anymore!"

"The school cared."

"It makes them look good. I make them look good… I'm making tea." Arianna leaves, she isn't angry. She doesn't do angry. She just got bored of the conversation.

"She's so like you." John shares a look with Sherlock who grins at this comparison. The one thing Sherlock Holmes ever felt proud about. His daughter.