I suggest we check the corridor leading west from the sand room (we're quite close), and then yes, on our way back, harvest the poison glands to see if Pres or Groth will purchase them from us.
After that's done I'd be fine with a jaunt down to level 3.
[f=32]Wiglaff the Elf, F3/MU2
(M 12", AC 9, HD 4+1, hp 14/14, N) cloak of elvenkind
, battle-axe; light, colour spray
[f=47]Wilibald "Willie" Whitfoot, F1/T1
(M 12", AC 6, HD 1+2, hp 9/9, L) gambeson+helm, shield+warhammer[/f]