(Post series finale)
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Since Lily was born, her cop sense has combined with mothers instinct. A powerful union. One that keeps her up all night.
So, when Beckett hears the soft click of the front door closing, then, the creaking of stairs, she springs into action.
She creeps toward the noise, gun drawn. Reaching the nursery, her heart stops.
"Put my daughter down!" she growls.
Spinning around, cradling Lily, he gasps on seeing the gun.
"Kate!" he squeaks, a familiar voice.
"Castle?" She lowers the weapon. "Your book tour?"
"Canceled. Missed my girls too much." He sighs.
"You only left ten minutes ago."
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Prompt: "Put my son/daughter down." She growled Castle comes back early from his book tour and goes into the nursery to see their baby still awake. Beckett thinks Castle is breaking in and kidnapping
A/N: I have been working on a longer one shot version of this to add to the many others I've started lately! I promise I'll finish at least one of them soon!