MAP07: Mystery of Hell (Hell Ground)


Hell Ground maps
This level occupies the map slot MAP07. For other maps which occupy this slot, see Category:MAP07.
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MAP07: Mystery of Hell is the seventh and final map of Hell Ground. It was designed by Alexander S. (Eternal) and uses the music track "Battle with the Red Queen" from American McGee's Alice.


Map of Mystery of Hell
Letters in italics refer to marked spots on the map. Sector, thing, and linedef numbers in boldface are secrets which count toward the end-of-level tally.


Other points of interest[edit]


  1. Taking the stairs down to the underground area, take the north door first. Go up to the pentagram and look left. Shoot the switch which will lower a column containing a green armor. (sector 520)
  2. At the northeast end of the underground area, you will see a super shotgun, health bonuses, and a backpack behind bars. To reach them, use the wall nearby to the north to find a switch, which will remove the bars. (sector 641)
  3. Leave the red key room through the south door when it opens and follow the hallway. Midway through the hall, shoot the skull switch behind the torch that is emanating light, then head into the west alcove where a wall is lowering. Inside is a medikit, ammo, and a rocket launcher. (sector 784)
  4. Take the southeast door in the main circle and use the southwest wall with a candle in front of it to find a soul sphere. (sector 1856)
  5. Take the southwest door in the main circle and follow the path until you reach a switch which lowers a big lift. A bit before that, find the wall with the candle in front of it and use it to find two rockets and a box of rockets. (sector 969)
  6. At the southwest halls in the library, you may have spotted a plasma gun between the cracks in the bookshelves. Head northwest from that area into a hall where a candle is on a bookshelf. You need to use this bookshelf, then quickly head south to the corner and shoot the northwest target switch, which will open the door to the south, allowing you to reach the plasma gun and energy cells. (sector 1380)
  7. At the main staircases in the library, head to the south end, then follow the balcony east as it curves north. Enter the first room to the south, where a revenant is in front of a bookshelf with a candle nearby. Using this bookshelf causes the wall near the candle to lower. Inside is a box of rockets, a box of shotgun shells, and a green armor. (sector 1500)
  8. In the southeast area of the library with numerous bookshelves, head to the southeast side to spot a candle. Open the wall where this candle is to find a dark passage containing rockets, a backpack, and an energy cell pack. (sector 1480)
  9. From Secret #8, head west until you see three sets of bookshelves on the west wall. Use the northernmost shelf (there's no indication that it can be interacted with), which will lower a section of a shelf further to the south containing a green armor. (sector 1822)
  10. At the south end of the balcony overlooking the room with numerous shelves, there are two alcoves. Use the back wall in either alcove to reach a secret area (sector 1876). Grabbing the soul sphere here changes the scenery and causes monsters to teleport in.
  11. In the gigantic library hall to the east that requires the blue key to exit, take the first set of steps at the northwest end, then use the lift next to the banner. Head south to the edge, then west to the edge, then look north. There's a tiny red button on the green wall. Shoot it to raise some steps to the west to a door, where you can find a backpack, two boxes of rockets, two boxes of bullets, a box of shotgun shells, four energy cell packs, and a BFG9000. (sector 1682)
  12. Back at the northwest stairs of the great hall, continue heading up until the walls in front and behind you open, revealing a revenant and a cacodemon. Go into the compartment where the revenant was and use the satyr switch, then where the cacodemon was to find an open passage. (sector 1659)
  13. Go to the end of the passage in Secret #12 and use the skull switch. Follow the bookshelf to the next opening to the north where you will find a chaingunner and a megasphere. (sector 1629)
  14. At the northern part of the library, use the switch to the southwest and head back to the north side. A compartment with cacodemons has opened here. Enter it and use the wall with the candle in front of it to find a megaarmor. (sector 1285)
  15. When you reach the towers, ride the lifts up and head to the main hall with the crushers. Head for the southeast side to find energy cell packs and a soul sphere. (sector 2096)


Demo files[edit]

Areas / screenshots[edit]


Routes and tricks[edit]

Current records[edit]

The records for the map at the Doom Speed Demo Archive are:

Run Time Player Date File Notes
UV speed
NM speed
UV max 19:37.03 Nikolay Kamnev (Heretic) 2010-06-07
NM 100S
UV -fast 22:28.51 NumberJuan77 2021-09-01
UV -respawn
UV Tyson
UV pacifist

The data was last verified in its entirety on December 5, 2021.


Player spawns[edit]

This level contains ten spawn points:

  1. facing east. (thing 26)
  2. facing north-west. (thing 27)
  3. facing east. (thing 994)
  4. facing east. (thing 996)
  5. facing north. (thing 998)
  6. facing north-west. (thing 1000)
  7. facing north-west. (thing 1003)
  8. facing north. (thing 1005)
  9. facing south-east. (thing 1007)
  10. facing south-east. (thing 1030)


Map data[edit]

Things 1244
Vertices 31927*
Linedefs 25382
Sidedefs 43795
Sectors 2379
* The vertex count without the effect of node building is 22481.


This level contains the following numbers of things per skill level:

Technical information[edit]

Inspiration and development[edit]


See also[edit]


External links[edit]