The Death Metal Revenge of Olga and the Derevelians

The story involves Olga supposedly finally agreeing to the Derevelian King Mall's proposal. The next day, the Deravlians sail back down the river and they say, we won't go up the hill to the fort unless you carry us in our boat. So they pick up the boat with the people in it and they trudge up thehill to the castle. And when they get up to the castle, they dump it into the hole that Olga had dug. She stands over them while they're in the hole and says, this is what I think of your proposal. And then she has them buried alive. For those following along at home, this is Olga