The Great Body Robbery: grave locations and full walkthrough

1. Find Doctor Fenkenstrain

Jagex added the quest in update 0.12.1 (July 29, 2026) and called it its longest Secondary Quest so far. MetaBot’s quest record counts 13 objective lines; they are listed in the tracker table below.

1. Travel to Bloodblight Swamp in eastern Ghornfell. Drink antipoison as the poison bar builds; the swamp fills it on entry.
2. Find the doctor’s tower beside the garou camp around the bloodwood tree. He stands on the same floor as the Sanguine Urn. A July guide describes it as a small stone castle by the swamp’s southern Lodestone, with the doctor on the second floor.
3. Talk to him. Whatever you answer, he asks you to collect body parts from graves around the swamp. Your journal tracks this as a 0/3 dig counter.

2. All three grave locations

Look for headstones. Dig beside one with your spade to uncover a coffin, then interact with the coffin to take the body part. You can dig them in any order; the journal counter goes up with each part.

Only the community wiki describes these spots in text, and Gaming Toolkits repeats it. If a grave doesn’t match the description, follow your quest marker and use the clips under this table to compare the scenery.

Spoiler clip · Bloodblight Swamp: dig the first grave for the Human Torso · reveal

Checked on screen · Nov 1, 2026 · Version 1.0

0:40–1:07 · 27 sBloodblight Swamp: dig the first grave for the Human Torso

Spoiler clip · Bloodblight Swamp: the Goblin Legs grave · reveal

Checked on screen · Oct 31, 2026 · Version 1.0

kingy.wiki1:08–1:26 · 18 sBloodblight Swamp: the Goblin Legs grave

Spoiler clip · Bloodblight Swamp: the Garou Arms grave · reveal

Checked on screen · Oct 31, 2026 · Version 1.0

kingy.wiki1:27–1:52 · 25 sBloodblight Swamp: the Garou Arms grave

All 13 objectives, as the journal tracks them

MetaBot’s record lists 13 objective lines but not in story order. We grouped them by stage using the wiki walkthrough. Three lines just say “Speak to Fenkenstrain”. When one appears, talk to him before using the table or the machine.

Checked on screen · Nov 3, 2026 · Version 1.0

1:44–1:56 · 12 sGraves objective: the counter reaches 1/3

Checked on screen · Nov 3, 2026 · Version 1.0

kingy.wiki2:55–3:06 · 11 sWhen the tracker says Speak to Fenkenstrain

3. Examine the body and brew three weak potions

Players stuck on this step on Steam had brewed a Weak Woodcutting potion instead of the Weak Lumberjack potion. One says the right potion has a lightning-bolt icon. Another pair tried Weak and Weaker versions without success, so match the names exactly.

1. Return to the doctor with all three parts and talk to him. Place the parts on the examination table next to him, then speak to him again.
2. Examine the parts when he asks. He then wants one Weak Antipoison, one Weak Focused Attack and one Weak Lumberjack potion.
3. Brew any you’re missing at a Brewing Cauldron (recipes below). Come back, talk to him with the potions in your inventory, then use them on the body on the table.

4. Catch lightning in the Empty Vial

Heal up before you go looking for a strike. A July guide warns that the strike can kill you.

1. After the potions, the doctor says the body needs lightning and hands you an Empty Vial. Keep it in your inventory.
2. Get struck by lightning while carrying the vial. Wait for a thunderstorm in almost any region, or go to the Stormtouched Highlands, where strikes happen in rainy weather.
3. The strike turns the vial into Lightning-in-a-bottle. Take it back to the doctor and talk to him.

5. Power the experiment

1. With Lightning-in-a-bottle in hand, talk to the doctor. He asks you to put his head on the unfinished body; interact with the body on the examination table.
2. Use Lightning-in-a-bottle on the machine next to the table. The wiki calls it a pylon and one guide calls it the Strange Machine. The doctor’s head swaps with a nearby chicken’s.
3. Talk to the doctor in his new body. He gives you the rewards and the quest completes.

6. Rewards: Zombie Arm and Lightning Rod

Jagex’s 0.12.1 notes describe the same pair as a club weapon and a buildable decoration called the Pylon. The wiki and the guides checked here name the build Lightning Rod.

The wiki lists Zombie Arm upgrades through power level 8, one core per level. It says the way to reach power level 9 isn’t in the game yet.

If Fenkenstrain won’t accept your potions or parts

These checks can’t fix every quest-state bug. One Steam reply suggests editing character save files as a last resort. Kingy hasn’t tested that; back up your saves before any edit. Note your platform, game version and objective text for a bug report.

1. Check the potion names first. The Steam reports above were solved by brewing the Weak Lumberjack potion, not a Weak Woodcutting or Weaker potion.
2. Talk to the doctor with all three potions in your inventory, then use them on the body on the examination table. One player found they had been talking to the head in the jar.
3. If his dialogue loops, update the game. Jagex fixed a dialogue soft-lock in hotfix 0.12.1.1 (July 30, 2026); the wiki’s trivia still mentions one. Dedicated servers must be restarted to pick up updates.
4. If the Sanguine Urn isn’t where guides say on an older world, update to 1.0.1. Jagex fixed the urn appearing elsewhere in Fenkenstrain’s castle for clients on older worlds.
5. Check the dig counter after each coffin. If it shows 2/3, compare the grave table with the parts in your inventory to find the missing one.