Sam and Aaron were on their way to school already, as they had to walk and they were about half an hour away from the school which wasn't really too far, but their parents could afford them a car. Sam thought the walk to school was boring, as Aaron, to Sam, was a buzzkill. And Aaron didn't like walking to school either, as Sam was annoying to him.

she was napping on a rock, with her whole body in the water, looking like a drowned woman

Calliope was also walking to school, but her house was quite far. Nontheless, she walked everyday, usually absorbed in one of her books, but while minding ahead of her. ...Most of the time.

she twitched an ear, straining for any dangerous sounds

The twins lived close to the beach, and they both enjoyed the view. As they drew closer to the school, they noticed a girl, lying very still. They agreed to go and investigate, but not to take too long because they couldn't be late for school. Not again

she heard them coming and snapped open her eyes, she twitched her ears, and blinked who are those people...? she thought

Calliope's house was literally on the beach. So she knew her way around here. She momentarily glanced up and noticed a dead looking girl, but not the twins. She thought it was weird, at least yhe girls position, an started to head for her.

great, a third person... she suddenly thought of her tail, and twitched her ears, as it was too late to hide it

When they got closer, they noticed the girl's eyes were open. Sam snickered and elbowed Aaron. "She's staring at you, bro." Aaron rolled his eyes. "If she's dead, she's not staring, you idiot."

Calliope noticed the tail, and she was compiled to head there even faster. Because dead people don't usually have tails, no matter how dead they are. Then it crossed her mind that she's probably not dead.