Beckett's apartment goes BOOM!
Castle races to Beckett's place, warning her via cell phone that their serial killer's still alive. KABOOM! Beckett's apartment explodes into a sea of flames. Undaunted, Castle bursts into the fiery apartment to find his partner. Thankfully, Beckett took cover in her tub. She's banged up but alive...and without clothes. As expected, she orders Castle to avert his eyes.
Castle covers Beckett with his overcoat and helps her out of the wreckage. The thing Beckett finds most shocking, more than someone trying to kill her mind you, is how Castle restrained himself from gushing over how he awesomely broke down her front door. Of course, once she mentions that, our favorite mystery writer tells that heroic tale as only Castle can.