Empty Grave

Biodata

Feature	Value
Name	Empty Grave
Original Name	空坟
Type	Undead-conversion and housing facility attached to the Graveyard Demon 1 9
Affiliation	Gu Su’s Graveyard Demon, initially named the Barren Graveyard 1
Owner / Operator	Gu Su 2 9
Role	Converts corpses into controllable undead; houses and restores resident units; supports population and elite reinforcement routes 2 4 9
Initial Configuration	Six graves: three Level 1, two Level 2, and one Level 3 1
Status	Operational; individual graves are reinforced into Burial Mounds, Grave Heads, and a Large Burial Mound, with additional special graves appearing as the territory expands 9 17 31 36
First Appearance	Chapter 1 1

Power Progression

The following developments concern separate graves within Gu Su’s territory, rather than one grave advancing through every form.

Stage / Realm / Level	Chapter	Notes
Initial Level 1–3 Empty Graves	1	The starting graveyard contains six graves but no initial undead population.
Level 1 Burial Mound	9	Gu Su fills the first grave with ten skeletons and selects the population route. Capacity increases from 10 to 25; filling the reinforced mound generates a minor leader.
Level 1 Grave Head	17	A different Level 1 grave reaches ten residents. Gu Su selects elite reinforcement, preserving capacity and undead type while granting its skeletons Attack +1, Defense +1, and Health +3.
Special Empty Graves	30 31	Two new graves appear beneath the Withered Wood Forest. They produce lumberjack ghouls or bone beasts instead of ordinary skeletons and permit only the population reinforcement route.
Large Burial Mound	36	The full 25-resident mound is reinforced through the tent. Total capacity rises to 100, organized into four 25-unit squad slots, with support for four lieutenants and one commander.

Appearance

• Initial graves: Newly dug pits scattered around the central dead tree, with moist soil along their edges. Three contain open, worm-eaten wooden coffins; the others expose bare earth 1.
• Occupied graves: Soil moves inward to bury corpses or residents, forming a mound and raising a tattered black tombstone. Its inscription records the resident squad and occupancy, such as “Skeleton Squad (2/10)” 2.
• Level 2 grave: A broken, open coffin carved with blurred undead patterns and emitting dense Yin energy 17.
• Special forest graves: Located beneath the Withered Wood Forest, with simple tombstones already erected before any corpses are deposited 30 31.
• Large Burial Mound: Includes three additional grave pits beside the original mound, each initially marked “Skeleton Squad (0/25)” 36.

Abilities & Skills

Automatic Undead Conversion

• Placing suitable corpses inside an Empty Grave automatically invokes Gu Su’s necromantic summoning skill and creates undead under his control 1 2.
• Successful conversions grant Gu Su proficiency in the spell used. Two goblin corpses produce two skeletons and two proficiency points during the first demonstrated use 2.
• Bodies can be processed directly on an occupied mound: five goblin corpses dissolve and become skeletons without first being pulled underground 4.
• Graveyard-assisted conversion has a better success rate than Gu Su’s battlefield necromancy 6.
• Stronger corpses, or corpses retaining weapons and armor, can provide a better foundation for the resulting undead 2.
• Corpse characteristics can affect the output. The Harpy Leader becomes a magic-type skeleton with 7 MP and Lightning Arrow, while another goblin shaman produces a magic-type skeleton with mana but no learned spell 32 40.

Grave Levels and Corpse Requirements

Empty Grave levels determine the broad category of undead produced, not the resulting unit’s combat level. The system has seven grave levels and follows a different progression from other undead buildings 9.

Grave Level	Documented Output	Corpse / Material Requirements
1	Skeletons	Fresh corpses 2 17
2	Zombies and ghouls	Strong corpses 2 17
3	Lowest-tier ghosts	Corpses possessing sentience 2 17
4	Vampires	High-constitution corpses plus blood 17
5	Wights in the level overview; ghouls or liches in the detailed requirements	Corpses with magical talent, supplemented by materials such as magic staffs and spellbooks 9 17
6	Death Knights	A corpse, longsword, full suit of armor, and mount corpse 17
7	Bone Dragons; the grave is called a Dragon Tomb	Dragons can be buried here, including velociraptors 9 17

Housing and Recovery

• A basic Level 1 grave accommodates ten undead, with occupancy displayed on its tombstone 2 9.
• Injured units can enter a grave to recuperate. A skeleton with a severed arm is buried beneath a mound marked “Recovering” and later emerges with its arm fully restored 4 8.
• Without other orders, skeletons remain in their graves, recovering vitality and improving themselves 9.
• The mound opens to release residents when Gu Su calls them, then closes again afterward 2.
• Tombstone inscriptions can identify a squad’s leader and full strength, as with “Coyote Squad (25/25)” 41.

Reinforcement Routes

Reinforcement becomes available once a grave reaches full occupancy 9.

Route	Capacity	Effect
Burial Mound	10 → 25	Keeps the undead type unchanged; generates a minor leader upon reaching full capacity 9.
Grave Head / Gravestone	Unchanged	Promotes resident undead from ordinary to elite. For skeletons, adds 1 Attack, 1 Defense, and 3 Health 17 31.
Large Burial Mound	25 → 100	Provides four squad slots and supports four lieutenants plus one commander 36.

• Empty Graves can be built on any empty plot of land, with no stated upper limit on their number 9.
• Elite reinforcement visibly strengthens skeletons: their bodies grow by roughly one-third, their bones thicken, and tough bandages bind their joints and torsos 17.
• The special graves beneath the Withered Wood Forest cannot take the elite route; they can only become population-focused mounds 31.

Special Forest Conversions

The Withered Wood Forest alters the attributes of graves within it, creating two specialized production options 31.

Output	Yield per Normal Corpse	Attributes	Uses and Limits
Lumberjack Ghoul	Not specified	Level 0; Attack 1, Defense 1, Health 10; Lumberjack skill	Cuts wood in the forest to improve production efficiency; has no significant combat advantage over an ordinary skeleton 31.
Bone Dog	2	Level 0; Attack 1, Defense 0, Health 5	Agile patrol unit with a keen sense of smell, but extremely fragile 31.
White Crow	3	Level 0; Attack 0, Defense 1, Health 3	Small flying scout suited to locating enemies, resources, and dangers; has no offensive power 31.

• Bone-beast conversion produces multiple units from one corpse without additional resource consumption 31.
• Gu Su first chooses a White Crow for scouting; newly hatched scout crows are present the following morning 33 34.

Story Role / Major Arcs

Establishing the First Undead Squad

The graves initially lack the undead population that should have accompanied the Gravekeeper purchase. Gu Su must obtain corpses himself before they can become useful. His first two buried goblins establish a squad, and another five corpses expand it to seven; a neighboring grave restores an injured skeleton 1 2 4 8.

Separating Population Growth from Combat Strength

Gu Su reserves one grave for magic-type skeletons and reinforces the first full grave into a Burial Mound because he needs more subordinates. Later, he uses another full grave’s elite route to create ten combat-oriented skeletons 9 17.

When he considers placing the Corrupted Jungle Lion King in a Level 2 grave, a system prompt identifies it as a core creature corpse needed for the Graveyard Demon’s upgrade. He ultimately preserves it rather than converting it 17 18.

Replenishment and Large-Scale Production

Event	Result
Recovery after the Harpy hunt	Seventeen Harpy corpses become seventeen skeletons, replenishing losses and expanding the ordinary population 22.
Mire Wolf conversion	The Large Burial Mound produces twenty-one skeletons wrapped in tattered Mire Wolf fur 39.
Mixed-monster conversion	Level 2 graves produce six durable ghouls; the Large Burial Mound produces fifteen skeletons; the magic-type grave produces one skeleton with mana but no spell 40.
After the half-orc battle	Gu Su summons three elite and twenty-eight ordinary skeletons from thirty-one corpses, then assigns the new undead to reinforce the grave facilities 47.

Relationships

• Gu Su — Owner and commander. His necromancy is automatically invoked by the graves, and he chooses their residents, reinforcement routes, and deployment 2 9 17.
• Graveyard Demon — Parent entity whose territory contains the graves. Territorial expansion creates additional burial facilities 1 30 31.
• Withered Wood Forest — Alters nearby graves to produce lumberjack ghouls and bone beasts, while excluding elite reinforcement 31.
• Ash — Leads a scavenging squad associated with the expanded first burial mound; Gu Su uses its new squad slots when organizing additional manpower 36.
• Coyote — Lieutenant whose squad occupies a full 25-resident mound, identified by its tombstone inscription 41.
• Combat Sentry — Separate downstream conversion facility that turns ordinary or elite skeletons and ghouls into equipped warriors at a resource cost 46 48.