diff --git a/kingdoms_meta/init.lua b/kingdoms_meta/init.lua
index 9b7cf6a..0cc467c 100644
--- a/kingdoms_meta/init.lua
+++ b/kingdoms_meta/init.lua
@@ -12,8 +12,10 @@ end
 domodfile("config.lua")
 
 local mod_ready_registry = {}
+local has_loaded = {}
 
 function kingdoms.mod_ready(mod)
+    has_loaded[mod] = true
     if mod_ready_registry[mod] then
         for _,f in ipairs(mod_ready_registry[mod]) do
             if f.params then
@@ -26,6 +28,9 @@ function kingdoms.mod_ready(mod)
 end
 
 function kingdoms.at_mod_load(mod, func, ...)
+    if has_loaded[mod] then
+        return func(...)
+    end
     mod_ready_registry[mod] = mod_ready_registry[mod] or {}
     table.insert(mod_ready_registry[mod], {
         func = func,
diff --git a/magic/init.lua b/magic/init.lua
index 0fd5b70..b03e391 100644
--- a/magic/init.lua
+++ b/magic/init.lua
@@ -31,5 +31,9 @@ domodfile("spells/attack.lua")
 domodfile("spells/defense.lua")
 domodfile("spells/teleportation.lua")
 
+if rawget(_G, "ancient_world") then
+    domodfile("structures.lua")
+end
+
 magic.log("action", "Loaded.")
 kingdoms.mod_ready("magic")
diff --git a/magic/schematics/magic_hovel_1.mts b/magic/schematics/magic_hovel_1.mts
new file mode 100644
index 0000000..03a178a
Binary files /dev/null and b/magic/schematics/magic_hovel_1.mts differ
diff --git a/magic/schematics/magic_hovel_2.mts b/magic/schematics/magic_hovel_2.mts
new file mode 100644
index 0000000..e317c83
Binary files /dev/null and b/magic/schematics/magic_hovel_2.mts differ
diff --git a/magic/schematics/underground_lab_1.mts b/magic/schematics/underground_lab_1.mts
new file mode 100644
index 0000000..2f431eb
Binary files /dev/null and b/magic/schematics/underground_lab_1.mts differ
diff --git a/magic/structures.lua b/magic/structures.lua
new file mode 100644
index 0000000..f0a09ad
--- /dev/null
+++ b/magic/structures.lua
@@ -0,0 +1,47 @@
+ancient_world.register("magic:magic_hovel_1", {
+    schematic = minetest.get_modpath("magic") .. "/schematics/magic_hovel_1.mts",
+    type = "decoration",
+    limit_y = {
+        max = -1024,
+        min = -31000,
+    },
+    on = {"default:stone"},
+    random_replacements = {
+        ["ancient_world:placeholder_1"] = {"magic:nightcall", "magic:daypull"},
+    },
+})
+
+ancient_world.register("magic:magic_hovel_2", {
+    schematic = minetest.get_modpath("magic") .. "/schematics/magic_hovel_2.mts",
+    type = "decoration",
+    on = {"default:dirt_with_grass"},
+    offset = {
+        x = 0,
+        y = -3,
+        z = 0,
+    },
+    random_replacements = {
+        ["ancient_world:placeholder_1"] = true,
+    },
+})
+
+ancient_world.register("magic:underground_lab_1", {
+    schematic = minetest.get_modpath("magic") .. "/schematics/underground_lab_1.mts",
+    type = "decoration",
+    limit_y = {
+        max = -512,
+        min = -31000,
+    },
+    offset = {
+        x = 0,
+        y = -16,
+        z = 0,
+    },
+    on = {"default:stone"},
+    replacements = {
+        ["ancient_world:placeholder_2"] = "air",
+    },
+    random_replacements = {
+        ["ancient_world:placeholder_1"] = true,
+    },
+})