(Keep in mind this is just in-character for the Kinrisari shopkeep; though I did expect someone to figure out what the guy was really saying. Ah well.)
The Kinrisari man frowns and bends over a bit to glare at Fleck. "Not too clever, are ye?" he says quietly to the gnome. "Say, why don't ye run aroun' outside screamin' out ev'ray thought, so the blind can know what ye've got on yer li'l mind, since the poor souls can't see the obvious signs 'angin' off ye?" he adds, trying to be blithe.
After a brief, scathing look at the gnome, the Kinrisari man says "It's fairly obvious the two fellows followin' ye aren't yer owners," he glances at Argus and Drack, "but ye could try a li'l 'arder not t' make yerself blat'n'ly obvious t' anyone watchin' for gnomes, what might wants t' cause trouble wit' the slave-owners. Ye must be pretty dense t' not've noticed the presence o' Ulruz merchants an' nobles, doin' business 'round Kinrisar, gnome. Just 'cause the Ulruz gov'ment don't care what me kind do wit' yer kind, ain't mean all the Ulruz don't care neither. Keep't in mind, sirah, an' ye might not git flogged by Ulruz or the slave-owners 'round 'ere." The big man pauses at this point to let his words sink in, and to take a breath. Fleck is certain the man must have figured him a fool, as though the man's earlier meaning should've been obvious to any gnome looking for other gnomes around here.
"Now'n..... I take it ye ain't done nuthin' even smackin' o' sneakiness a'fore, gnome, so I'll not bash on yer wits n'more t'day. Suffice t' say, I know what ye came 'ere for, an' I 'ope fer yer kin's sake that ye don't git them 'urt by yer lack o' subtlety in town. I'm sure Thim gave ye a coin if'n 'e mentioned me place t' a gnome, mebbe ye could think on dat next time, eh? Ye won't find a Refuge in Kinrisar, sirah, but the closest ye'll find's in 'ere, an' I'd 'preciate it if ye didn't go makin' it obvious t' me kinsmen."
The big Kinrisari fellow goes over to a shelf of parts and tools in his storeroom, pulls it aside quietly, and opens a small, small trap door beneath. The door is only about two feet square, and beneath is a ladder of handholds and footholds leading down about 10 feet, where it reaches a small cellar. The Kinrisari man waves the trio over to it, then steps back and says aloud in Tradespeak, "Right, very good sirah, Mierren'll work wit' yer servants fer a bit, an' ye're free t' oversee, but I gots t' go back t' work meself. I'll bring in yer cart t' work on later."