"What?" Derek asks. Molly audibly gasps while Sherlock frowns.
Sherlock steeples his fingers and gets lost to the conversation around him. This explains a lot but…
"So you think Augustus might have something to do with Igor's death. A father-son rivalry," Sherlock asks.
"No I don't think. I know," Vlad pauses. He runs a hand through his hair, "I just don't have any proof."
"But how can he? No Beta has ever successfully managed to even hurt an Alpha!" Derek interjects, while he notes his own hypocrisy here.
"That what is stopping me from ripping out his throat," Vlad says.
"But he could be one now," Derek says softly.
"One what?" Sherlock asks.
"An Alpha," Derek replies.
Molly turns her head to look at Derek. Her Werewolf 101 did not cover this. Derek sweeps his gaze over both Sherlock and Molly. They mirrored the confused look. He sighs and says, "Sometimes when a Beta or an Omega manages to kill an Alpha, their status can change. An Alpha is the strongest predator. Take out the first in the pack, you can become the next Alpha. I would know, I did it once."
Sherlock just raises an eyebrow while Molly nods. Vlad says, "So what do we do? I can't convince the pack without any evidence. They all adore Augustus too much."
A thought strikes Molly, but she remains quiet.
"What's the colour of Alpha eyes?" Sherlock asks.
"Red," Molly says.
"Then there is only one way to prove that. We need to instigate him so much that he is forced to turn."
"That won't be easy. Alphas are far better at controlling their transformation than others," Derek says.
"He is Sherlock Holmes. You don't know his powers of annoyance," Molly smirks.
Sherlock narrows his eyes at her while Derek flashes a grin, "True. I forgot about that."

After Vlad and Derek left, Molly finally left for her home. She left after Sherlock very nicely asked her out for dinner and she blushed and giggled as she promised she would. They had decided to meet back at Baker Street at around seven or so. Molly could barely contain her glee as she went shopping (again).
It is six in the evening now and Molly decides to do the full beauty regimen thing. She scrubs, polishes and moisturizes till her skin literally glows. She also manages to very accurately curl her hair and decides on light make-up to match her powder blue skater dress.
Half-way through all that primping and beautifying, Molly's eyes fall on her calendar. She notes that her period date is in two days. To consider all necessary precautions, she packs her tampons in her overnight tote. She does not want to, rather, cannot be unprepared now, can she?
At around seven she heads towards Baker Street in a taxi, the glee in her face hardly concealed as she bites down on her lips to stop grinning. She has imagined this for so long, it felt all a bit unreal to her. Obviously, she did not plan on being a werewolf to do all this, but she'd like to give credit her new-found confidence to it.
The taxi stops. She walks up to the door and knocks on it. Sherlock opens it. As he turns around to shut the door, Molly manages to blush even harder when she notices he is wearing that purple shirt again. She notices his smirk. She shakes her head and says, "You always know everything."
Sherlock shrugs. He leans down and kisses the sensitive spot under her ear. A shiver passes through her. He brings his lips to her ear and whispers, "I always liked pastel shades on you."
Molly places a hand on his chest and gently pushes him, until his back is touching the door. The fact that she is far more stronger that Sherlock makes her happy sometimes. She stands on her toes (no heels today) and softly brushes her lips along his jaw. She also notes the change in his heartbeat with some satisfaction. She stands back and gives him a wolfish grin, "Shall we? I am really hungry."

Dinner was surprisingly amazing. Molly had doubts that maybe this—they—would not work. But after tonight, she could see the silver lining. All through dinner they talked about random things. She told him about her university days while he told horribly embarassing stories about Mycroft (she wonders if she will manage to keep a straight face around Mycroft anymore).
Now, she is in the bathroom. And everything is not all right. On their way back, she realised her periods had started and she had no clue how to convey this to Sherlock. Damned irregular periods! To add to that, she feels how she felt during the full moon.
Her breathing is labored and sweat breaks out on her forehead. Her eyes stings and her bones ache. She cannot leave the bathroom. If she does, she can hurt Sherlock and she does not want to hurt him. She needs help. She manages to grab her mobile and even though the claws were making it difficult, she presses the right number or so she hopes so.

Stiles is busy curled up in the sofa with Toby for company as he watches T.V. when his phone rings. He picks up and frowns. It is Molly. She is on a date with Sherlock, right? Why would she call him? He picks it up, "Hello?"
"Help," Molly whispers, "I am in Sherlock's bathroom…it feels like the full moon."
The phone disconnects. Stiles sits up straight and runs towards Derek's bedroom. He does not knock, he throws open the door, "Molly is wolfing out now!"
Derek and Stiles catch a taxi and rush towards Baker Street. Stiles shouts to the taxi driver, "To a pharmacy first!" He turns to Derek and says, "You may need to be supremely scary now."

Sherlock paces the living room when he hears a thud in the bathroom. Anxious, he raps on the bathroom door. He says, "Molly? You okay?"
Molly had crashed against a wall as her bones start rearranging and she feels that familiar tightness in her chest again. She moves towards the mirror again and gasps a little. She had actually never seen herself as a werewolf. She had been only hearing about it. Her eyes are a bright yellow and her canines have overgrown. She thinks she looks quite ferocious.
Sherlock knocks again. Molly to opens her mouth to answer, but what comes out is a tiny roar. He backs away from the door. He assumes she is having a "moment". He walks back into his living room and searches for his phone. He finds it on the sofa and dials Derek's number.
He says as Derek picks up, "Molly—"
"Yes yes I know. She called Stiles. I am almost there!" Derek replies.
Sherlock waits for a very breathless ten minutes as he hears more noises from the bathroom. Crashes, bangs and thuds. He is equal parts worried and scared. Worried because he hopes she is okay and scared because he knows he is not safe here. But he resolves to not leave her.
Derek and Stiles finally arrive. They race up the stairs and encounter a very worried Sherlock pacing furiously in his living room. He silently points towards the bathroom. Derek needed no directions. He can hear her. Female werewolves, he silently muses.
He says, "Do you mind if I break your door?"
Sherlock simply shakes his head. Derek goes ahead and pushes against the door. It budges a little while Stiles says to Sherlock, "This is not much but sit down in one place okay? I will make a mountain ash ring around you. We don't know what she might do." Sherlock silently obeys.
The door gives away in another push and Derek rushes in.
Molly notices the intrusion and lashes out at Derek, successfully slashing his cheek. He swerves the next blow as he mutters, "Sorry Molly." With that he turns and baring his teeth, roars at her. She roars back and tries slashing his neck. He swiftly avoids her claws which hits the tiled wall and leaves a deep scratch instead, and forming a fist, promptly punches her in her head. His fist makes a soft thud against her skull as she swings a little and loses her footing. Derek notices with some surprise that it does not stop her entirely. Well, out comes the syringe full of tranquilizer then. As she calms down a little, he quickly injects her.
Derek turns back into human. He picks her up and apologises to her again. He carries her out.
Sherlock and Stiles, sitting safely in the ash circle heard all the noise and the roars. For Stiles, this was not his first rodeo so he decides to say something to Sherlock, "You know, they are still the same person. They will just become different sometimes. My best friend is a werewolf too. That doesn't mean you give up on them."
Sherlock looks at him and says firmly, "I know. If you think I would leave Molly for this, you are mistaken. I just don't know how to handle all this, but I am a quick learner."
Stiles smiles, "You must really like her."
Sherlock just smiles. Right at that moment, Derek comes out with an unconscious Molly in his arms. Sherlock sees her claws and canines peeking behind her lips. But he also sees the familiar small figure bunched up in Derek's arm and the softly curled brown hair. He gulps as he realises, werewolf or no werewolf, she is still his pathologist. He walks up and gestures at Derek.
Derek understands. This is now between them, he has done his duty. He places Molly's inert body in Sherlock's arm and smiles. He says, "She is out cold now. I gave her a powerful tranquilizer. She is too strong for a new werewolf. Good thing Stiles had the great idea of stopping at a drug store. And Sherlock, be here when she wakes up tomorrow."
Sherlock frowns, "Where would I go? But…I thought wolfs turn only on full moons."
"Not the female ones," Derek had noticed the tampon pack on the bathroom floor, "they can also turn when they, umm, menstruate."
Stiles stifles a giggle at Derek's obvious discomfort. Derek throws a glare at his direction.
Sherlock nods. He says, "Thank you." He turns to Stiles and says, "And you too."
Derek nods as he walks out with Stiles following.
Sherlock carries Molly to his bedroom. He glances at the bathroom. The mirror is broken, there are scratch marks on the tiles and little droplets of blood on the floor, no doubt Derek's. He shakes his head. He pushes open the door with his back. He carries her to the bed and gently puts her down. He pulls up the blanket and tucks her in. He takes off his jacket and lies down on top of the blanket. He moves sideways, putting one arm under his head so he could look at her better. Sedated, she looks as if she is pleasantly dreaming. Her breathing is normal and a strand of hair drapes one half of her face, covering it. He moves it and strokes her cheeks. His hand finds her hands as he pulls it up and kisses her palm. No, he shall not give up on her.

A/N. Hello! I am back with a new chapter! So sorry for not updating for so long. I was going through the torture erstwhile known as EXAMS.
Also, I do not know for certain but I remember someone telling Stiles in season two (when Peter bit Lydia) that female werewolves turn twice a month and then no further explanation. I reckoned maybe they turn when they get their periods, I mean come on, we are psychotic enough during then, so why not the same for werewolves? All hormones really. :)
Oh I know Sherlock seems a little OOC here but I guess if anyone can love wholeheartedly it could only be him (entire season three people!).