So . . . *two* of the guards just barely passed Aliani's Enthrall save (hurray nat 15s), and Malder not only saw Dalen & Silas coming, heard Miz & Trinia running upstairs (hurray nat 20 Perception) but also resisted Dalen's Sleep spell (hurray nat 19).
That's . . . a really improbably high series of rolls on the part of Korvosa's finest.
Looks like the forum dice roller has decreed that it's going to be a FIGHT!
Working on battle map now.