Otto bids his companions farewell. "Friends, I hope that I will see you soon," he says. "But first, I must be sure that you can escape this place with no further harm. I'll come find you when I can."
With that, the halfling gathers some daggers, torches, and dishes and heads south out of the room. Dousing all of the torches along the way, Otto follows his companions south, stopping at the next corner and waiting.
[sblock=Plan]Otto will douse all torches in the room we were just occupying and head south to the next corner, stopping at AV85. He waits until his companions are well out of sight, then throws an assortment of daggers, torches, and dishes down the passage to the west (say square AS86), past the intersection. He's not worried about accuracy as much as making lots of noise.
Once that's done, Otto moves to BB87 and waits for confirmation that the pursuers are coming. He has no light, and assumes that the pursuers are using darkvision. Once he knows the pursuers are coming to the intersection, Otto throws the rest of the stuff he collected at square BC82 and thereabouts, the passage leading north.
Otto then sneaks south and hopefully out of the complex, following the route his companions took.
Not sure what skills you want to use for this. Here are the relevant ones I can think of: Bluff +9, Hide +14, Listen +2, Move Silently +13. His ranged attack roll if needed would be +7.[/sblock]