more work on modrons

sections/3-the-castle-with-the-steel-door.md

@@ -76,6 +76,11 @@ over, the PCs are returned to Castle Green. There is no longer a steel
 barrier preventing access to Green and the Deck. The PCs can go talk to
 Green, and can negotiate to buy the Deck.
 
+## Character Leveling
+
+When the PCs begin this chapter, raise them to Level 3.  Then,
+at some reasonable midpoint of this chapter, raise them to Level 4.
+
 ## The Market Square of St Parnas 
 
 The PCs manage to leave the Museum of Orethys, with Joycie’s help. The
@@ -2412,6 +2417,14 @@ Omta which makes it possible for the PCs to communicate with Omta. The
 PCs are navigating the labyrinth by asking Omta for what they need.
 Green’s employees don’t have that option.
 
+The PCs are supposed to be Level 3 at the start of this
+chapter, and they're supposed to rise to Level 4 at the
+midpoint of this chapter.  Since Rescuing Green's employees
+is likely to be a major focus of the first half of this
+chapter, raising them to Level 4 after they rescue all of
+Green's employees is a reasonable option.
+
+
 ### Ants are Taking the Castle by Force
 
 The castle was built very close to an anthill containing intelligent