Negative health, yet still moving

[schwagg]

The following people are in your travel party:
  Rotting Christ                (Warlock)    [M: 56%] [H:100%]   - Frontrank
  Killa                         (Paladin)    [M:100%] [H: -1%]   - Backrank
  Nama                          (Ninja)               [H:100%]   - Frontrank
[HP=254/MA=55]:
Lava Fields
Also here: Killa*, Nama*.
Obvious exits: north, east, southwest
[HP=254/MA=55]:par
The following people are in your travel party:
  Rotting Christ                (Warlock)    [M: 56%] [H:100%]   - Frontrank
  Killa                         (Paladin)    [M:100%] [H: -1%]   - Backrank
  Nama                          (Ninja)               [H:100%]   - Frontrank
[HP=254/MA=60]:
Lava Fields
Also here: Killa*, Nama*.
Obvious exits: north, east, southwest
[HP=254/MA=60]:l kil
[ Killa  ]
Killa is a solid, physically Godlike Kang Paladin with none black hair and
black eyes. He moves cautiously, and is hostile and rather unappealing. Killa
appears to be quite stupid and looks fairly knowledgeable. He is mortally
wounded.

He is equipped with:

adamantite claymore            (Weapon Hand)
horned helmet                  (Head)
plate gauntlets                (Hands)
ruby-eyed skull ring           (Finger)
plate boots                    (Feet)
golden armbands                (Arms)
greatcloak                     (Back)
golden amulet                  (Neck)
full plate leggings            (Legs)
ogre-skin baldric              (Waist)
fine breastplate               (Torso)
tower shield                   (Off-Hand)
skull mask                     (Ears)
gold emblem                    (Worn)

[HP=254/MA=60]:aid k
Killa does not need aiding!
[HP=254/MA=60]:
Lava Fields
Also here: Killa*, Nama*.
Obvious exits: north, east, southwest
[HP=254/MA=60]:par
The following people are in your travel party:
  Rotting Christ                (Warlock)    [M: 61%] [H:100%]   - Frontrank
  Killa                         (Paladin)    [M:100%] [H: -1%]   - Backrank
  Nama                          (Ninja)               [H:100%]   - Frontrank
[HP=254/MA=60]:
Lava Fields
Also here: Killa*, Nama*.
Obvious exits: north, east, southwest
[HP=254/MA=60]:l n
Lava Fields
    The ground here is covered in lava-filled cracks and craters. The radiant
heat and light is intense, nearly unbearable, but nonetheless it is still
possible to survive here. It is impossible to see far as the waves of heat
obscure vision. A pool of magma lies to the west.
Obvious exits: north, south
[HP=254/MA=60]:l e
Lava Fields
    The ground here is covered in lava-filled cracks and craters. The radiant
heat and light is intense, nearly unbearable, but nonetheless it is still
possible to survive here. It is impossible to see far as the waves of heat
obscure vision. A pool of magma lies to the south.
Also here: flame elemental.
Obvious exits: west, southeast
[HP=254/MA=60]:n
Lava Fields
Obvious exits: north, south
Killa walks into the room from the south.
Killa telepaths: @wait (HP's too low)
[HP=254/MA=60]:
Lava Fields
Also here: Killa*, Nama*.
Obvious exits: north, south
[HP=254/MA=60]:aid k
Killa does not need aiding!
[HP=254/MA=60]:s
Lava Fields
Obvious exits: north, east, southwest
Killa walks into the room from the north.
Killa telepaths: @wait (HP's too low)
[HP=254/MA=60]:par
The following people are in your travel party:
  Rotting Christ                (Warlock)    [M: 61%] [H:100%]   - Frontrank
  Killa                         (Paladin)    [M:100%] [H: -1%]   - Backrank
  Nama                          (Ninja)               [H:100%]   - Frontrank
[HP=254/MA=60]:


He was ticking up on his own, as you can see from these clips from a few seconds/minutes later

[HP=254/MA=70]:par
The following people are in your travel party:
  Rotting Christ                (Warlock)    [M: 71%] [H:100%]   - Frontrank
  Killa                         (Paladin)    [M:100%] [H:  0%]   - Backrank
  Nama                          (Ninja)               [H:100%]   - Frontrank
[HP=254/MA=70]:
Lava Fields
Also here: Killa*, Nama*.
Obvious exits: north, east, southwest


And breaking 0 hp:


The following people are in your travel party:
  Rotting Christ                (Warlock)    [M: 71%] [H:100%]   - Frontrank
  Killa                         (Paladin)    [M:100%] [H:  0%]   - Backrank
  Nama                          (Ninja)               [H:100%]   - Frontrank
[HP=254/MA=70]:
Lava Fields
Also here: Killa*, Nama*.
Obvious exits: north, east, southwest
The effects of blur wear off.
[HP=254/MA=75]:aid k
Killa does not need aiding!
[HP=254/MA=75]:par
The following people are in your travel party:
  Rotting Christ                (Warlock)    [M: 76%] [H:100%]   - Frontrank
  Killa                         (Paladin)    [M:100%] [H:  0%]   - Backrank
  Nama                          (Ninja)               [H:100%]   - Frontrank
Killa casts minor healing on Killa!
Killa stops to rest.
Killa says "@heal"
Killa casts minor healing on Killa!
Killa stops to rest.
Killa casts minor healing on Killa!
Killa stops to rest.
Killa says "@heal"
[HP=254/MA=80]:par
The following people are in your travel party:
  Rotting Christ                (Warlock)    [M: 81%] [H:100%]   - Frontrank
  Killa                         (Paladin)    [M: 88%] [H:  8%] R - Backrank
  Nama                          (Ninja)               [H:100%]   - Frontrank

[schwagg]

I went back and recreated how this bug happened, here it is :

Lava Pool
Also here: Nama*, Killa*.
Obvious exits: south, down
Killa casts minor healing on Killa!
Killa stops to rest.
[HP=254/MA=87]: (Resting) par
The following people are in your travel party:
  Rotting Christ                (Warlock)    [M: 88%] [H:100%] R - Frontrank
  Nama                          (Ninja)               [H: 97%] R - Frontrank
  Killa                         (Paladin)    [M: 78%] [H: 27%] R - Backrank
Killa says "@heal"
[HP=254/MA=87]: (Resting)
Lava Pool
Also here: Nama*, Killa*.
Obvious exits: south, down
Killa casts minor healing on Killa!
Killa stops to rest.
[HP=254/MA=87]: (Resting)
Lava Pool
Also here: Nama*, Killa*.
Obvious exits: south, down
Killa drops to the ground!
[HP=254/MA=87]: (Resting) aid Killa
Killa does not need aiding!
[HP=254/MA=87]: (Resting)
Lava Pool
Also here: Nama*, Killa*.
Obvious exits: south, down
[HP=254/MA=87]: (Resting) s
Lava Pool
Obvious exits: north, southwest
Nama walks into the room from the north.
Killa walks into the room from the north.
Killa telepaths: @wait (HP's too low)
[HP=254/MA=87]:sw
Lava Fields
Obvious exits: east, west, northeast
Killa walks into the room from the northeast.
[HP=254/MA=87]:e
Lava Fields
Obvious exits: east, west, southwest
Killa walks into the room from the west.
[HP=254/MA=87]:e
Lava Fields
Obvious exits: west, northeast
Killa walks into the room from the west.
[HP=254/MA=87]:ne
Killa telepaths: @wait (HP's too low)
You hear movement to the northeast.
Lava Fields
Also here: fierce magma man.
Obvious exits: north, east, southwest
Killa walks into the room from the southwest.
[HP=254/MA=87]:e
Nama moves to attack fierce magma man.
Nama swings at at fierce magma man!
Nama hacks fierce magma man for 8 damage!
Nama critically impales fierce magma man for 58 damage!
Nama swings at at fierce magma man!
Nama critically slashes fierce magma man for 101 damage!
The fierce magma man swings at Nama, but he dodges out of the way!
Lava Fields
Also here: flame elemental.
Obvious exits: west, southeast
Nama walks into the room from the west.
Killa walks into the room from the west.
Nama breaks off combat.
Nama moves to attack flame elemental.
[HP=254/MA=87]:se
Lava Fields
Obvious exits: northeast, northwest, southwest
Nama walks into the room from the northwest.
Killa walks into the room from the northwest.
[HP=254/MA=87]:
Lava Fields
Also here: Nama*, Killa*.
Obvious exits: northeast, northwest, southwest
[HP=254/MA=87]:par
The following people are in your travel party:
  Rotting Christ                (Warlock)    [M: 88%] [H:100%]   - Frontrank
  Nama                          (Ninja)               [H: 97%]   - Frontrank
  Killa                         (Paladin)    [M: 74%] [H: -4%]   - Backrank