You get the distinct impression that Gunthar's shady. Shadier even than you know, and not just at the level of overcharging you for a few pots of herbs and spices. From his reaction to 'Flavouring an entire party of wandering adventurer's', you can't be sure that's not exactly what his deal with the Blackscales is. Though of course, in any such deal, he'd have to be careful to avoid becoming a meal himself. And you can be that he'd surely turn against the lizardfolk if a better deal came along - like the rich(ish) treasures of Kha'shazul. In either case, he's probably a decent junglesman, at least, and his cooperation would surely ease your passage. Though whether you bribe him or betray him first... decisions, decisions...<br/><br/>{If you chose to try and string him along, a bluff check will be required}