Success!

You receive 130 EXP (18827 EXP total!) and 100000 Gold! You used 200 energy points.

You've battled the hord for 47 days. You can remain 75 more days before returning to the castle.

And yet no gold was added. When I do the quest seconds later:

You receive 130 EXP (18827 EXP total!) and 100000 Gold! You used 200 energy points.

You've battled the hord for 48 days. You can remain 75 more days before returning to the castle.

and EXP and gold are not increased...