I ask him where the Maker of War is now, what his next move is, why the lake is strategically important to him, and what reinforcements he has lying in wait for us. I also ask if he knows where Zat is and what his role is in all this. I suspect he's Scalehome's chief enchantment officer, but I'd prefer to hear from the Elf.
Thoroughly intimidated and in the zone of truth, he answers; "Skaeshin is nearby, but he doesn't have a camp I know of. I don't know his plans."
"We were to guard the lake because it is important to the city."
"There are thousands from the nearby cities, you would be wise to stop your war."
"Zat, I don't know that name."