When Alex woke up, she couldn't see. She blinked furiously, and for a second she feared she'd gone blind. But as she looked around trying to orientate herself, she saw a small green light in the ceiling, blinking every few seconds. So she wasn't blind, the room was just pitch black.

She tried to get her bearings. Where was she? What happened? Her neck hurt, as if she'd been stung by something.

And then, in a second, everything came rushing back. The police station. Winn calling her back because of Maggie's boss…

Maggie.

"Maggie?" She whispered into the blackness. Her head was pounding, and even her own whispers made waves of pain crash over her. She groaned, trying to lie as still as possible as to not disturb herself even more.

When she received no response, her heart started pounding in sync with the ache in her head. Something very bad had happened to both of them, and Alex had no idea where she was.

She desperately attempted to regain her composure, and brought her two hands together in a single clap, focusing on the noise.

There wasn't a big echo, so the room she was in wasn't all that big. The ground underneath her felt like cement.

All of a sudden, Alex heard a beep. She looked up to the darkness, before a voice filled the room. "Hello, agent Danvers."

Her stomach sank. Her fears had been correct.

"Lillian Luthor." She spat the name with as much hatred as possible.

"Fantastic. I'm glad the introductions are out of the way."

Alex knew she had to think fast. She couldn't let CADMUS know how close she and Maggie were. Maybe it was just a coincidence that they were both abducted together. After all, they kept their PDA on the low when they were out in the field together. Maybe…

"What do you want?" She finally asked the blackness. The response was a cold chuckle. "Why, agent Danvers. Why the rush? You're going to be here for a while. Might as well get comfortable, we can finish the small-talk later. In the meantime… I'll be paying a visit to your… friend."

Alex willed herself to stay calm at the implications in Lillian's words. Apparently they had a camera on her too, because the answer came almost immediately. "Or… You could save me the trouble… If you give me Supergirl's civilian identity, I'll let the detective go."

In a second, Alex weighed her options. She had to keep both her sister and Maggie safe. Kara was probably out looking for them. And giving Kara's real identity up was out of the question.

Her own stupid plan had gotten Maggie caught up in this mess, so she couldn't risk it.

"What does it matter?" She decided to stall, to buy herself some time. "And what, you can't even come in here yourself to do it face to face? Why the darkness?!"

"Why, you catch on fast." Came the taunting voice again. "I'm sure that you'll see soon enough why you should prefer the darkness. As for Supergirl, well… It doesn't take the geniuses CADMUS has to figure out how Supergirl wouldn't hesitate to come save you. So in all reality, you're extremely expendable. Not to mention the detective. Now… smile. We're live."

Alex frowned at the statement, as she couldn't see anything besides pitch black.

"For the fifteenth time, Jesus fucking Christ, I don't have anything to do with it!"

Kara, in her Supergirl outfit, folded her arms skeptically. She inched closer to the glass holding cell at the DEO, where an exasperated Rick Cooper was leaning against the side, glaring at her. "Sawyer's one of my best detectives, why the hell would I do something like that?!"

"You tell me." Kara said. "CADMUS have something on you?"

"I don't know who or what CADMUS is! I've been a lieutenant for the NCPD for years now, I serve this city loyally, I have no intention of ruining all that I've worked for!"

Kara heard a door open behind her, and saw Winn shuffle inside. "Supergirl? A word?"

The heroine walked towards Winn, but turned around once more to glare at the lieutenant.

As soon as they were alone, Winn cleared his throat. "Uh… Right, so… I don't want you to freak out, but… Neither Alex nor Maggie returned after the whole police precinct situation, and-..."

"What do you mean…?" Kara frowned. Winn looked at his tablet. "I mean… Maggie was supposed to get back in the van and she never showed up. And I saw Alex running inside the building, so I figured Alex helped Maggie escape, but…"

Winn sighed, and turned the tablet around. On it was a live night vision feed of a dark room. In the center of the room, a figure was crouched down onto the ground.

Kara recognized her sister immediately, and her eyes widened. "Where… Where is it, Winn?!"

"I can't trace the signal, they encrypted it. But I'm like 99% sure that CADMUS is behind it. And… Since you took Maggie's boss here, there's no way he could have kidnapped Alex."

Kara stepped back, feeling her breakfast coming back up at the sight of her sister, helpless, and at the mercy of Lillian Luthor and her scientists. She had to do something.

"Tell J'onn, we need a plan. I'm going to go fly around and see if I can hear her. Please… Keep an eye on her."

"Of course, yeah." Winn took a shaky breath as he turned back to the live feed in front of him, while Kara sped through the halls to get to her launching balcony.

Alex had lost all track of time. She couldn't tell if it had been seconds, minutes or hours since Lillian last spoke to her. In the darkness, she'd lost all sense of direction. The only thing she was aware of was her own breathing, and the way her heart was pounding in her chest.

She knew that there were cameras and microphones fixed on her, as there was no other way Lillian could have known how she responded. But this feeling of darkness and depression crept over her, and genuinely frightened her.

Another beep. "Are you ready to talk to us, dear?"

"I don't know Supergirl's identity." Alex said. "I only work with her professionally."

"Oh really? What about her saving you and the detective two days ago, from our facilities? Would she do that for just a professional relationship?"

Alex swallowed thickly. "Yes, she would. She fights crime, you're crime. It's not rocket science."

A 'tsk' from the speaker above her. "And here I was, really hoping we could get a decent conversation going. Well… I suppose I'll have to convince you otherwise."

All of a sudden, Alex heard footsteps surrounding her. Was somebody in the room with her? How long had they been in there?!

Her thoughts were interrupted by the sound of a fist hitting flesh, and a low grunt. Alex turned to the sound instinctively. It came from inside the room, but it was hard to orientate herself in the dark.

Another punch. And another one. The rustling of chains. A painful gasp.

And with a shock, Alex realized what exactly she was listening to.

She jolted up, running towards the sounds, but felt herself being tripped, and falling onto the ground.

"No… Maggie!" She groaned, looking around. The weak answer came within seconds.

"… A-Alex?"

Alex looked up immediately. "Let her go, Luthor! She hasn't done anything to you!"

"I guess she hasn't told you everything about herself, then. Some girlfriend she is."

Another punch. Alex winced at the sound. "Stop it! I'll tell you, just stop!"

"Somehow I doubt it." Lillian Luthor was laughing. Laughing at the pain Alex was feeling, not to mention Maggie.

"What do you want from me?!" Alex shouted back, feeling hot tears slip down her cheeks, knowing that Maggie was in the same room as her, but she couldn't reach her or see her.

"Alex, don't…" Came Maggie's voice, followed by a sharp, wet intake of breath, and a cough.

Alex fell to her knees, sobbing. "I'll tell you… please… I'll tell you…"

A chuckle from overhead.

"I'm listening."