diff --git a/LEGO1/lego/legoomni/include/isle.h b/LEGO1/lego/legoomni/include/isle.h
index ae7e1af7..8d98d423 100644
--- a/LEGO1/lego/legoomni/include/isle.h
+++ b/LEGO1/lego/legoomni/include/isle.h
@@ -61,15 +61,22 @@ class Isle : public LegoWorld {
 	void Enable(MxBool p_enable) override;           // vtable+68
 	virtual void VTable0x6c(LegoPathActor* p_actor); // vtable+6c
 
+	inline void SetDestLocation(LegoGameState::Area p_destLocation) { m_destLocation = p_destLocation; }
+
+	void FUN_10033350();
+
+	// SYNTHETIC: LEGO1 0x10030a30
+	// Isle::`scalar deleting destructor'
+
+protected:
 	MxLong HandleEndAction(MxEndActionNotificationParam& p_param);
 	MxLong HandleClick(LegoControlManagerEvent& p_param);
 	MxLong HandleType19Notification(MxParam& p_param);
 	MxLong HandleTransitionEnd();
 	void HandleElevatorEndAction();
-	void FUN_10031590();
+	void UpdateGlobe();
 	void FUN_10032620();
 	void FUN_100330e0();
-	void FUN_10033350();
 	void FUN_10032d30(
 		IsleScript::Script p_script,
 		JukeboxScript::Script p_music,
@@ -77,12 +84,6 @@ class Isle : public LegoWorld {
 		MxBool p_und
 	);
 
-	inline void SetDestLocation(LegoGameState::Area p_destLocation) { m_destLocation = p_destLocation; }
-
-	// SYNTHETIC: LEGO1 0x10030a30
-	// Isle::`scalar deleting destructor'
-
-protected:
 	Act1State* m_act1state;             // 0xf8
 	Pizza* m_pizza;                     // 0xfc
 	Pizzeria* m_pizzeria;               // 0x100
diff --git a/LEGO1/lego/legoomni/src/worlds/isle.cpp b/LEGO1/lego/legoomni/src/worlds/isle.cpp
index a1bbe9aa..21aeb3dd 100644
--- a/LEGO1/lego/legoomni/src/worlds/isle.cpp
+++ b/LEGO1/lego/legoomni/src/worlds/isle.cpp
@@ -399,15 +399,15 @@ MxLong Isle::HandleClick(LegoControlManagerEvent& p_param)
 			Start(&action);
 			break;
 		case IsleScript::c_Observe_RCab_Ctl:
-			FUN_10031590();
+			UpdateGlobe();
 			break;
 		case IsleScript::c_Observe_GlobeLArrow_Ctl:
 			UpdateLightPosition(-1);
-			FUN_10031590();
+			UpdateGlobe();
 			break;
 		case IsleScript::c_Observe_GlobeRArrow_Ctl:
 			UpdateLightPosition(1);
-			FUN_10031590();
+			UpdateGlobe();
 			break;
 		case IsleScript::c_Observe_Draw1_Ctl:
 		case IsleScript::c_Observe_Draw2_Ctl:
@@ -443,10 +443,18 @@ MxLong Isle::HandleClick(LegoControlManagerEvent& p_param)
 	return 0;
 }
 
-// STUB: LEGO1 0x10031590
-void Isle::FUN_10031590()
+// FUNCTION: LEGO1 0x10031590
+void Isle::UpdateGlobe()
 {
-	// TODO
+	MxS32 lightPosition = atoi(VariableTable()->GetVariable("lightposition"));
+
+	for (MxS32 i = 0; i < 6; i++) {
+		MxStillPresenter* presenter = (MxStillPresenter*) Find(*g_isleScript, IsleScript::c_Observe_Globe1_Bitmap + i);
+
+		if (presenter != NULL) {
+			presenter->Enable(i == lightPosition);
+		}
+	}
 }
 
 // STUB: LEGO1 0x100315f0