*The plan from here is to make one final stop at Jhaar, a rough-and-tumble outpost on the edge of an inhospitable Sphere full of dangerous meteoroids. It is the farthest place from civilisation in this direction, nestled amongst the Unknown Spheres, and everything beyond is uncharted and possibly unfriendly territory, where chances for a break might not exist. Jhaar is several weeks' travel, mostly through the phlogiston, though catching a rapid rainbow eddy in the right direction could speed that up considerably.*
*Leaving the Tymadish Sphere, the Hesychia speeds through the phlogiston once more. After about a week of totally-uninterrupted Spelljamming speed, they slow down because of an approaching mass which turns out to be a derelict ship, floating motionless in the phlogiston. This is an unusual sight, but not an unknown one, especially on ships with only one able helmsman. There could be people stuck there, but moving too close would risk mixing what is possibly stale air into their air envelope. They could also just keep going.*