Early on in this series, Donut received a magical crown and of course she put it on before reading the description. The warning on the crown stated that the wearer would become a member of the Blood Sultanate and would not be able to leave the 9th floor of the dungeon without killing every other member of the Sultanate. This was a permanent liability as removing the crown does not negate the effect. She eventually replaced the crown, but that too was a mistake, because it allowed that same crown to be forcibly placed onto the head of fellow crawler Katia in a later book. At that point there was no way that both Donut and Katia could both reach the 10th floor, but it was a problem for another day. No longer. The 9th floor, known as Faction Wars, is finally here and it is one of the most deadly floors in the dungeon. Add on the Donut/Katia situation and there is no way that Carl makes it to the 10th floor without losing someone he loves.
This Inevitable Ruin - Carl and Donut finally arrive at the dreaded 9th floor
