Minister Drost, with Aiwass in tow, went to Queen Sofia's bedchamber.
Even Diomedes didn't enter the room—he stood guard outside, not allowing anyone to approach.
The queen had only been dead for less than an hour, and the place still brimmed with signs of life, only it had been thoroughly stripped of maid servants and guards, making it seem somewhat empty.
Of course, Sherlock hadn't been imprisoned here, after all, this room had windows.
Considering Drost didn't wish Sherlock to be found, he was probably in the underground ritual chamber by now. In order to prevent outsiders from affecting the ceremony, the ritual chamber had been isolated from the outside world.