Still progressing through IGJ for the second time and came across this passage today:
p.146. Fava talks of her life back on the Whorl in Grandecitta...of having periods and getting or pretending to get charms from stregas or stregos to ward off the pain of the period. This is obviously not Fava's memory but Saleca's. So the inhumi definitely absorb memories. Fava seems to be having the same type identity crisis telling this remembrance as Horn does at times.
So far I still believe Fava was born around the time or shortly after Horn arrived on Green. Horn's spirit went to the Whorl and obviously returned on a lander to Blue. I am guessing Fava crossed during the conjunction that occurred after Horn left Lizard but before he arrived in Blanko.
Dennis/Endy
http://home.mindspring.com/~endymion9/index.htm
*This is WHORL, for discussion of Gene Wolfe's Book of the Long Sun.