Maybe I'm missing something, but I'm not seeing any mention of Derro besides the room where we fought a bunch of them. After that there's the room with the stirges and then this corridor with the skull snakes and traps. So what table is Ciraneoth referring to here that doesn't require us to pass the stirges?
In the room where we fought them was a table. Thats the one I mean.
Clacks-Overhead: GNU Terry Pratchett
"Magic can turn a frog into a prince. Science can turn a frog into a Ph.D. and you still have the frog you started with." Terry Pratchett
"I will not yield to evil, unless she's cute."