diff --git a/README.md b/README.md
index 2a08500..de5dce0 100644
--- a/README.md
+++ b/README.md
@@ -19,7 +19,7 @@ TODO:
 
 #### Lucky Blocks
 
-It provides 65 new lucky blocks if the mod is detected.
+It provides 66 new lucky blocks if the mod is detected.
 
 ## Technical info
 -----------------
@@ -110,6 +110,7 @@ who helped make this mod bigger and better throughout it's release :)
    the new layout for compatibility if wanted.
  - Update settings.
  - Candles use [multiply for colour.
+ - Add desert stone spikes to caves biome, and stone spikes underneath.
 
 ### 1.31
  - Fix fishing biome checks
diff --git a/lucky_block.lua b/lucky_block.lua
index 1489358..af15c6a 100644
--- a/lucky_block.lua
+++ b/lucky_block.lua
@@ -14,6 +14,7 @@ lucky_block:add_schematics({
 	{"basandrabush", ethereal.basandrabush, {x = 1, y = 0, z = 1}},
 	{"mushroomone", ethereal.mushroomone, {x = 4, y = 0, z = 4}},
 	{"mushroomtwo", ethereal.mushroomtwo, {x = 1, y = 0, z = 1}},
+	{"underspike", ethereal.desertstone_under_spike, {x = 1, y = 0, z = 1}},
 })
 
 -- add lucky blocks
@@ -62,6 +63,7 @@ lucky_block:add_blocks({
 	{"dro", {"ethereal:shovel_crystal"}},
 	{"dro", {"ethereal:fishing_rod_baited"}},
 	{"exp"},
+	{"sch", "underspike", 0, false},
 	{"dro", {"ethereal:fire_dust"}, 2},
 	{"exp", 4},
 	{"dro", {"ethereal:crystal_gilly_staff"}},
diff --git a/schematics/desertstone_under_spike.lua b/schematics/desertstone_under_spike.lua
new file mode 100644
index 0000000..cc63587
--- /dev/null
+++ b/schematics/desertstone_under_spike.lua
@@ -0,0 +1,48 @@
+
+local _ = {name = "air", param1 = 000}
+local S = {name = "default:stone", param1 = 255}
+local s = {name = "default:stone", param1 = 127}
+local C = {name = "default:cobble", param1 = 255}
+local c = {name = "default:cobble", param1 = 127}
+
+ethereal.desertstone_under_spike = {
+
+	size = {x = 3, y = 8, z = 3},
+
+	yslice_prob = {
+		{ypos = 3, prob = 127},
+		{ypos = 5, prob = 127},
+		{ypos = 6, prob = 127},
+	},
+
+	data = {
+
+	C,S,C,
+	C,S,C,
+	_,S,_,
+	_,S,_,
+	_,C,_,
+	_,_,_,
+	_,_,_,
+	_,_,_,
+
+	S,S,S,
+	S,S,S,
+	S,S,S,
+	_,S,_,
+	_,S,_,
+	_,S,_,
+	_,S,_,
+	_,C,_,
+
+	C,S,C,
+	C,S,C,
+	_,S,_,
+	_,S,_,
+	_,C,_,
+	_,_,_,
+	_,_,_,
+	_,_,_,
+
+	}
+}
diff --git a/schems.lua b/schems.lua
index 513151d..a50bd53 100644
--- a/schems.lua
+++ b/schems.lua
@@ -31,6 +31,7 @@ dofile(path .. "lemon_tree.lua")
 dofile(path .. "olive_tree.lua")
 dofile(path .. "basandra_bush.lua")
 dofile(path .. "desertstone_spike.lua")
+dofile(path .. "desertstone_under_spike.lua")
 
 -- register decoration helper
 
@@ -55,12 +56,21 @@ local old = minetest.settings:get_bool("ethereal.old_biomes")
 
 register_decoration(minetest.get_modpath("stairs") and ethereal.caves, {
 	place_on = "default:desert_stone",
-	fill_ratio = 0.01, y_min = 5, y_max = 42,
+	sidelen = 16, fill_ratio = 0.01, y_min = 5, y_max = 42,
 	biomes = {"caves"},
 	schematic = ethereal.desertstone_spike,
 	spawn_by = "default:desert_stone", num_spawn_by = 8,
 	flags = "place_center_x, place_center_z, force_placement", rotation = "random"})
 
+-- desertstone under spike
+
+register_decoration(ethereal.caves, {
+	place_on = "default:stone",
+	sidelen = 16, fill_ratio = 0.01, y_min = 5, y_max = 42,
+	biomes = {"caves"},
+	schematic = ethereal.desertstone_under_spike,
+	flags = "place_center_x, place_center_z, all_floors", rotation = "random"})
+
 -- igloo
 
 register_decoration(ethereal.glacier, {