Edgeworth spent the rest of his evening writing in his diary, mostly making personal notes for the next book he planned to write. Being in the new territory and establishing a new world order had inspired him to record some of the things he had been through already, and he wanted to make a book out of it.
Thus, Dimitri was left to his own devices as Edgeworth wrote into the evening, stopping only once he was ready to go to bed for the evening.