Who is the publisher of Assur by Parrot?
There is an edition of Assur published by Gallimard, however different editions may have different publishers.
You can buy a parrot from the village shop. Or you can buy a bird perch in one of the decor categories and buy a parrot from that, too. Once you have the parrot then you get a whistle in your inventory to call your parrot out once you are near the Emissary. Then click on the parrot and there should be a choice to Sic Parrot On... and you can choose Emissary.