4.

Flashing red and blue lights reflect off the walls on both sides of the crime scene. Yellow tape surrounds the mouth of the alley. A faint coppery scent wafts on the breeze. Chaos is erupting everywhere as a few jumbled words like "officer down" echo in her ears and all around her. Beckett stands there frozen and numb in a bubble of time as she hardly focuses on Castle's motionless body. Staring into lifeless eyes that usually stare back with such passion, intelligence and emotion is now like staring into black holes of the abyss. It's then that her legs give out. Falling to her knees, a scream erupts up her throat and over her lips.

Abruptly sitting up in bed, covered in sweat, a few tears escape the confines of her eyes and glisten a trail down her cheek as the light from the window highlights only one side of her face, leaving the other tear streaks in utter darkness.

Diving for her phone she clumsily fumbles it to the floor, but quickly snags it in her deft fingers while hitting speed dial one in a flurry.

Castle answers on the third ring and instinctually knows something is wrong…the silence on the other end, an answer in and of itself. He's out of bed, dressed and headed out the door in less than a minute.

Hearing his voice she calms only slightly as she regains a thread of composure and glances at the clock on her nightstand. She begins apologizing as Rick cuts her off asking what the nightmare was about. Of course he would know.

It seems only moments later she is opening the door to a light rap that is uniquely Castle. Stepping inside, arms outstretched in an inviting gesture, she lets herself fall against him in a reassuring embrace. Kissing the top of her head as he whispers in her ear that he's here, he's ok, she finally relaxes and completely melts into him. As they finally pull back, Beckett searches his face and sees only love and concern in his eyes. At that moment it hits her like a blinding light in pitch-blackness. She's in love with this man, a man who without hesitation leaped out of bed to come to her side in comfort. Why it's taken her so long she has no idea, but not willing to waste another second her lips crash against his in a repeat of a long-ago kiss in front of a dark warehouse. If possible, this kiss is even more passion-filled, sending tingles from head to toe. In that moment she knows he is her 'one and done'…always.