It's the start of a big week for the Greens - will they be invited to the ball, and, if they are, is it really in their interests to accept?
Labour have won enough seats to govern on their own, but may see an advantage in pulling the Greens in close.
But with little real leverage, how easy will it be for the Greens to push for their own agenda?
Green Party co-leader James Shaw speaks to Corin Dann.
