Lieutenant Anastasia Shoreman is sitting in a bar, sipping a drink and staring off into the middle distance. 

Three things are unusual about this:

--Lieutenant Shoreman does not drink, and consequently is generally not to be found in bars.  

--There is a pile of napkins with writing on them by her right elbow.

--This bar is neither onboard the ISS Ajax, where Lieutenant Shoreman is stationed, nor on any planet on which the Ajax has ever docked. It is, if the napkins can be believed, in its own little pocket universe.