Did 1 assignment quest that said workduration 4 days, but even after 20 days the slave isn't back (i'm not keen on trying another one).
Would be nice to know that before, if it's a common thing.
Should be v0.4.1 if i'm right.
EDIT: Just to make sure, yes i know there are slave request quests, but i didn't accept any of these ever (they bring too little profit)