They quickly purchase two pallets of sunscreen in disposable biodegradable application tubes, packed in cases. Even with a galaxy full of dead planets manufacturers make things biodegradable when they can. This is partly old Earth habit, and partly because almost every environment in which one might use sunscreen is one which is filled with life and therefore vulnerable to an accumulation of garbage.
Barring, of course, the unlikely event of some unforeseen problem that can only be resolved with a massive supply of sunscreen, they have a small but useful cargo to sell at a future stop on a habitable, sunny planet.
(Does anyone want to be the spacer in the bar finishing the story with "fortunately we had two pallets of sunscreen aboard, so we...?)
Abe has some time to talk to old contacts before they leave, but not much. Certainly no visiting time.
And then they are off, the little ship rising off the spaceport at Altiplano, heading out past the orbiting squadron of warships.
The stretch of Main Line past Calderada was a war zone, once. From here to Zinderneuf, last (officially) inhabited planet, many battles were fought. Scavengers make a living recovering remnants from battles, with the Navy, eager to gather any technical intelligence they can about their alien enemies, paying for their discoveries. Many of the settlements occupy what were once fortified bases (a few still are). The Commonwealth Navy, with much assistance from the Crossers, burrowed deep enough into asteroids so that miles of material bulk created a shield that would protect against even nuclear blasts. Numerous decoys were built as well, and a few of the more elaborate decoys are now used as habitats as well.
Gamboge City started out as a military repair site. It's non reactive atmosphere isn't life supporting but offers some great advantages over toxic atmospheres, or none at all. The only hazard is the lack of oxygen, which can be provided. That means that a ship can be landed, and a simple tent thrown over it. When the air inside is oxygenated, the ship can be worked on without the technicians needing vac suits. Since the pressure is close to Earth normal, even a leak in the tent isn't dangerous, as long as the oxygen level is being monitored.
Most of the colony is on the surface, now. There are still spaces deep underground built back in the more dangerous era, but it's just not worth the effort of building so deep anymore.
When the Nellie Bly arrives, it is cleared to land, second in the order behind an old retired assault lander making its last landing.