Assuming Franklin judges the roof to be solid, Wiglaff will edge into the room (keeping close to the wall) till he can get a better look at the stain around the nearest pillar. He won't go within five feet of the pillar, but will squint at the stain with his Elf Eyes to try and discern its nature.
[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]