It was Luna who remembered the date. Not through the documentation — she'd stopped that months ago, mostly. Through something simpler: she'd been going through old photographs on her phone, looking for something else entirely, and had found the date stamped on the very first one. The grainy, half-dark photo she'd taken from the kitchen window the morning after Sera arrived, before either of them had spoken more than a few sentences to each other, when Sera had still been mapping exits and Luna had still been deciding whether the new arrival was a threat or an opportunity or — as it turned out — both, briefly, and then neither, and then something else entirely. A year and a half ago, almost exactly, to the day. Luna mentioned it to Cole first, because Luna mentioned most things to Cole f

