WHEW! Found her!

She fell asleep on the windowsill behind the computer... only I never saw her because 1) she is between the curtain and window 2) she and Angel got into a scrap this morning over the spot behind the computer and in front of that window - I figured she left for spots less fight-worthy. 3) Nobody's ever sat there before -- they sit on the windowsill NEXT to the computer or the desk BEHIND the comptr, in front of the windowsill, but never ON the windowsill!

So my little blackie is found and I will not let her out of my sight until after the couple leave.