Venom

"Suck on these. They'll make you feel better," Aang said distractedly as he pushed the quickly defrosting frogs he'd gotten into his sick friends' mouths. He sighed as he walked away from them and collapsed onto Appa's tail.

"Aang, how was your trip?" Sokka asked, trying to talk around his frog. Aang vaguely wondered if he realised what he was sucking on. Probably not. "Make any new friends?"

"No, I don't think I did." Saddened at the thought, a strangely depressed Aang seemed to sink into himself.

Sokka ignored him, too busy sucking on his frog. "Mmm! This is tasty! Mmm- ga- ugh! Ack!"

Puzzled, Aang looked up- to see Sokka gagging as the completely defrosted frog squirmed in his mouth.

"URRGH!!" Sokka spat it out- but he was still gagging. Aang smiled at his face, glancing at Katara, who whose frog was free and just beginning to wiggle. She opened her mouth, allowing it to escape and the two were soon spitting and coughing, throwing accusing glances at Aang as he looked on, grinning.

Two days later, when they were still coughing and sweating, Aang's grin was long gone. Nothing he did stopped their trembling. None of their medicines had any effect. Their fevers just got higher and higher as they became more and more delirious. Within a week, both Sokka and Katara were dead.

Not far from a seemingly abandoned cottage, an old woman scanned the swamp from which Aang had taken his frozen frogs, talking all the while to her cat.
"Don't come in here, Myuki! I'm not sure what's in here, but I don't like how this water... oh no."

She stared at the rotting carcass of a strange creature she'd almost stepped on. Peering closely, she recognised it to be a young Dragon Viper- a creature she'd only heard of in legends. They were supposed to be extremely vicious- and venomous. She glanced at her cat, lying on dry ground in the shade of a tree.

"See, Myuki? It's a good thing I checked the water before I took those frogs, isn't it."


A/N: I blame dA's Capt-BA and paintedbluerose. One gave me the itch to kill Katara; the other provided the means. Sokka, sadly, is just collateral damage.
Somehow, it's just right that Aang killed them both. I still can't believe he took medical advice from a woman who told him she was crazy. At first, the frogs were just going to be poisonous, but then the Viper just.. jumped in that swamp.

The Capt's going to make you love the Dragon Viper. It's like Ozai- except it's an animal.