Stupor Mundi

You may travel (move your Ship 1–4 spaces) and then play one Action card to perform its action; once you resolve that action the next player takes their turn, and you may take further turns later in the Action Phase until you pass. (pages 8–9)

No — a face-down Action card lets you perform only one of the main actions indicated by the spears on the back of the card. (page 8)

A Specialist may never change path; you can have multiple Specialists on the same path or space (except City Workplaces), but only one Specialist from a given path may reach that path's City Workplace. (page 10)

An Edict is issued when you take an action on any edict-marked space (examples: certain Castle Builds, placing an Ally, or a Workplace with an Edict); you choose one face-up Active Edict, take its reward, then activate each icon by adding/removing the indicated items to/from Frederick's Palace and finally replace the resolved Edict tile. (page 11)

No — when adding Structures to Frederick's Castle via an Edict, the new Structures do not have to be connected to existing ones. (page 11)

When you complete (close) a side by connecting two Towers with a Wall you immediately gain that side's bonus, and that same income is granted again during each subsequent End Phase. (pages 12 and 15)