If Kordax is already asleep, then you are doing a "good day". You don't need the washbowl then. You need the washbowl if you';re doing "bad day" and have to make a new poisoned washbowl.
Open the bag on the floor and take the heliotrope and half of Akkad's crown.
Take the horn and automatically blow the horn.
Go back to Iris and talk to her.