Thorin was thrown into a cell, three down from Kili's. 
“Did he offer you a deal?” The chances were slim, but Balin remained hopeful.
“He did." Thorin's voice was low, his tone icy. "I told him he could go ‘Ish kakhfê ai’d dur rugnu!’ (I spit upon your grave!) - him and all his kin!”
Balin sighed in frustration. “Well...that’s it, then. Unless Saeril can speak sense into him. A deal was our only hope.”

Thranduil looked to Saeril, his stare penetrating. "Is that so? I have heard of you...it is unusual, this change of events. Have you grown fond of such a despicable race?" The blond elf returned to his throne, then motioned the guards to release her so that she may move freely. "The treasure is all I seek. Should you have information regarding it...you would be well rewarded."