When Erica entered the bathroom she found Marissa curled up by the toilet bowl.

"Are you alright?" Erica asked.

Marissa didn't look up. She just sat slumped on the floor like it was suddenly too much effort even to move her head.

Erica was worried. Marissa seemed to be having trouble breathing. She couldn't speak, just loudly gasping for air and she looked close to passing out. Her skin was almost grey.

Erica's mind went over what she could remember from the movies; about what to do when someone overdosed on drugs.

"I think you need to get up and keep moving." she said, because that what they do on TV when someone overdoes the sleeping pills. She reached down to try and help Marissa up from the floor but she didn't have the strength. "Come on; on your feet."

Marissa tried to obey but she didn't move more than a few feet before collapsing back again.

"Are you feeling sick?" Erica asked as Marissa leaned forward, breathlessly panting away. She didn't respond, just stared at a point on the carpet. Erica knew this was a bad sign. She was clearly having a reaction to whatever drugs Madison had dosed her with.

"Marissa?" Erica said trying to get a response from her. "Can you look at me?"

Marissa lifted her head and then looked like she regretted it.

"It's okay. I'm going to call an ambulance." Erica said; she still had Marissa's phone in her hand from earlier. "Just try and stay with me."

Marissa didn't respond as Erica franticly dialled.

"Just hold on." said Erica squeezing her hand. "I promised Bianca I'd look after you."

Erica got through to the call centre and was quickly describing the urgent need for an ambulance for Madison, Marissa and Scott when Marissa suddenly flopped over and started convulsing violently; narrowly missing striking her head on the toilet bowl.

"She's fitting!" Erica cried on alarm. "What do I do; she's having a fit?"

"Is there any one with you?" the operator asked.

"Brooke's with the others." said Erica.

"Okay," said the operator in a calming voice. "Well it's important that you don't restrain her. Just clear any hazards from around her. Make her safe. And when the fit had stopped roll her into the recovery position: I'm sending the ambulance right now. Have you done first aid?"

"A while ago." said Erica following the instructions, making space around Marissa and removing hazards like the pedal bin that was under her twitching feet.

"And do you remember the recovery position?"

"On her side with her knee bent and with her hand under her chin…"

"That right..."

Then just as unexpectedly as it had started, Marissa convulsions suddenly stilled and so did her wheezing breath.

"It's stopped!" Erica exclaimed, relieved… but then she leaned closer and the panic returned. "I…I don't think she's breathing."

"Okay, don't panic. I want you to check her pulse… can you remember that from you first aid training?" said the operator but Erica was already on it. Marissa couldn't be dead. Erica couldn't let her be; Bianca would never forgive her!

...

This was all Erica's fault.

Had she just killed her daughter's girlfriend because of jealousy?

…