User blog comment:Metadwarfosis/In anticipation of volume 11- Dwarven Kingdom and Expectations/@comment-72.20.138.102-20160817182214/@comment-26181040-20160818000920

Well that spolier pic of the dragon, infers it to be a character stat picture from vol 11. Thus it indicates that the dragon is intelligent like Hamsuke. Also its possible that this dragon will become AInz's servant. There are about 45 character sheets and majority of them survived to appear in the next volumes. About 91% of the characters live to see another day after their first debut. The majority of those that died in Overlord with character sheet are in Vol 7 from Foresight, Though it can be argued that only one techically died, Arche, and the rest were used as living test subjects in the bellows of Nazarick so the percentage could be brought up to 98%. Ainz might have a new powerful ally.