When he sees the cart's dust cover move and hears the guards at work, Glaxtiks reacts immediately, even as he silently curses the city of Kaiimar. He doesn't bolt -- that's not his style, when he can help it at least -- but carefully maneuvers to the side of the cart furthest from the sounds of the inspection, keeping low, between the side of the cart and the back of a setee. Two of the corners of the cover are thrown back — not quite revealing his position — and the sounds of furniture scraping along the floor of the cart, being moved or removed and examined begins. Straining his ears, pulling his knees in, Glaxtiks waits his chance, then when he's convinced he can do it safely, he slips over the side of the cart, under cover of a fold of the thrown-back cover, and swings underneath, getting a grip on a wheel axle with both hands and both feet. From there, he uses his eyes, watching the movements of booted feet, and even risks a glance around the wheel and dust cover corner past and under which he just swung; as he already saw in passing, he chose the right side of the cart: he's quite near one wall of the passage, with no one on that side for the present. There's no commotion -- nor whispering or stealthy movement --- on any side to suggest he was seen as he dropped, and he moved as quickly and decisively as always, with almost no profile at all against the side of the cart, hidden in part by the edge of the dust cover. He can hear the inspection progressing above him, long and thorough, but he waits patiently, in silence, hanging exposed just a few feet below their lines of vision, though as nearly flush with the bottom of the cart as he can be. Eventually, the inspectors give the cart a pass, and the dust cover comes back on -- Glaxtiks moves again, swiftly, silently.
Afterward, he isn't sure when he saw the guard kneeling to look under the cart -- whether he reacted to a change in the stance of a pair of boots instinctively, or decided there was a risk before one materialized -- but he was back out from underneath, clinging to the side of the cart, making sure he wasn't seen, and back in under the cover before the guard got his head down low enough to take a look underneath. The cart remained motionless for a seeming eternity ... and then began to roll forward again, its unintended passenger still in place.
He tells Thaqz about it at their first rendezvous, in the spot Glaxtiks found in the park, and points out the need for a back-up plan, not only in the future, but perhaps on the way out. He got through it, yes, and maybe even made it look routine, but if he hadn't gotten lucky with the positioning of that wall and that fold of the dust cover, and hadn't moved to just the right places, at just the right moments, there's no telling what might have happened -- or what still might, especially if Hirena is known to be dead before they try to leave the city.
