(A) Turns its back on Sofia and heads straight towards the remaining party.
(F) leaps into 1024, grabs its quarterstaff there and uses it to attack Carlito. It rolls a 16, hitting and causing 2 damage. Carlito is stunned again, but the creature does not have enough move to follow him.
(D) Turns, sweeps its staff over Kismet's head, and attacks Arkemis. Arkemis seems to be somehow blessed, because as D's staff strikes Arkemis' sword, D rolls a 1 and drops HIS quarterstaff. It doesn't break, but does roll into 1025, at Arkemis's feet. Arkemis hops and the quarterstaff rolls behind him.
(C, B & E) are all stunned and take no action at all this round.
(H) gets a +2 modifier to its ability to see the sinkhole since he can see Kismet has slipped into it. He rolls a 2, that is definitely under his intelligence, and pulls up short.
It is now the party's turn.
Arkemis swings and rolls a 16. He does four damage to (D), who stumbles back into 1224, stunned.
Enrico can swing, Neklan's sling is loaded. Sofia can take what action she will. Kismet, I'll tell you at the end of the round if you were able to extricate yourself.
Updated for party movement: