diff --git a/content.cpp b/content.cpp
index 9321db62..010f24c5 100644
--- a/content.cpp
+++ b/content.cpp
@@ -1298,7 +1298,7 @@ LAND( 0xE08020, "Canvas", laCanvas, ZERO | LF_TECHNICAL, itNone, RESERVED, "A fa
 
 LAND( 0x00C000, "Palace Quest", laPrincessQuest, ZERO, itSavedPrincess, RESERVED, princessdesc) // fake
   NATIVE(isNative(laPalace, m))
-  REQ(ACCONLY(laPalace) KILL(moVizier, laPalace))
+  REQ(ACCONLY(laPalace) INMODE(princess::challenge) KILL(moVizier, laPalace))
 
 LAND( 0xD0D060, "Wild West", laWildWest, ZERO, itBounty, RESERVED, wildwestdesc)
   NATIVE((m == moOutlaw) ? 2 : 0)
@@ -1797,4 +1797,5 @@ MONSTER( '*', 0,        "vertex", moRogueviz, ZERO | CF_TECHNICAL, RESERVED, moN
 #undef ACCONLY2
 #undef ACCONLY3
 #undef ACCONLYF
-#undef IFINGAME
\ No newline at end of file
+#undef IFINGAME
+#undef INMODE
diff --git a/help.cpp b/help.cpp
index 969b632a..7b49cfd8 100644
--- a/help.cpp
+++ b/help.cpp
@@ -700,6 +700,7 @@ void add_reqs(eLand l, string& s) {
     #define COND(x,y) s += (y);
     #define ITEMS_TOTAL(list, z) \
       { int now = 0; string t = "("; for(eItem i: list) { if(t!="(") t += " | "; t += XLATN(iinf[i].name); now += items[i]; } t += ")"; s += XLAT("Treasure required: %1 x %2.\n", its(z), t); buteol(s, now, z); }
+    #define INMODE(x) ;
     #define ACCONLY(z) s += XLAT("Accessible only from %the1.\n", z);
     #define ACCONLY2(z,x) s += XLAT("Accessible only from %the1 or %the2.\n", z, x);
     #define ACCONLY3(z,y,x) s += XLAT("Accessible only from %the1, %2, or %3.\n", z, y, x);
diff --git a/landlock.cpp b/landlock.cpp
index b6557207..3ffc46bc 100644
--- a/landlock.cpp
+++ b/landlock.cpp
@@ -230,6 +230,7 @@ EX bool landUnlocked(eLand l) {
     #define ACCONLY3(x,y,z)
     #define ACCONLYF(x)
     #define IFINGAME(land, ok, fallback) if(isLandIngame(land)) { ok } else { fallback }
+    #define INMODE(x) if(x) return true;
     #include "content.cpp"
 
     case landtypes: return false;