diff --git a/lake_country/snake_pit/Chaos_lair3 b/lake_country/snake_pit/Chaos_lair3
index ec8d23a43..4a118b8f6 100644
--- a/lake_country/snake_pit/Chaos_lair3
+++ b/lake_country/snake_pit/Chaos_lair3
@@ -187,9 +187,15 @@ end
 arch cave3
 y 29
 end
+arch medium_stones
+y 30
+end
 arch cave3
 y 30
 end
+arch medium_stones
+y 31
+end
 arch cave23
 y 31
 end
@@ -709,6 +715,10 @@ arch large_stones
 x 1
 y 30
 end
+arch medium_stones
+x 1
+y 31
+end
 arch cave2
 x 1
 y 31
@@ -1036,6 +1046,10 @@ arch cave1
 x 2
 y 30
 end
+arch medium_stones
+x 2
+y 31
+end
 arch cave22
 x 2
 y 31
@@ -1391,6 +1405,10 @@ arch blocked
 x 4
 y 5
 end
+arch medium_stones
+x 4
+y 6
+end
 arch cave4
 x 4
 y 6
@@ -3099,6 +3117,10 @@ arch cave1
 x 10
 y 14
 end
+arch medium_stones
+x 10
+y 15
+end
 arch cave22
 x 10
 y 15
@@ -3698,10 +3720,18 @@ arch cave2
 x 12
 y 29
 end
+arch medium_stones
+x 12
+y 30
+end
 arch cave24
 x 12
 y 30
 end
+arch medium_stones
+x 12
+y 31
+end
 arch cave23
 x 12
 y 31
@@ -3911,6 +3941,10 @@ arch cave9
 x 13
 y 30
 end
+arch medium_stones
+x 13
+y 31
+end
 arch cave2
 x 13
 y 31
@@ -4113,6 +4147,10 @@ arch large_stones
 x 14
 y 30
 end
+arch medium_stones
+x 14
+y 31
+end
 arch cave2
 x 14
 y 31
@@ -4326,10 +4364,18 @@ arch cave1
 x 15
 y 29
 end
+arch medium_stones
+x 15
+y 30
+end
 arch cave1
 x 15
 y 30
 end
+arch medium_stones
+x 15
+y 31
+end
 arch cave22
 x 15
 y 31
diff --git a/lake_country/snake_pit/Chaos_lair4 b/lake_country/snake_pit/Chaos_lair4
index affc5e953..db7685414 100644
--- a/lake_country/snake_pit/Chaos_lair4
+++ b/lake_country/snake_pit/Chaos_lair4
@@ -2306,6 +2306,10 @@ arch cave3
 x 13
 y 21
 end
+arch medium_stones
+x 13
+y 22
+end
 arch cave23
 x 13
 y 22
@@ -3553,6 +3557,10 @@ arch cave1
 x 19
 y 16
 end
+arch medium_stones
+x 19
+y 17
+end
 arch cave1
 x 19
 y 17