Here's what happened: A companion and myself were visiting sites for pilgrimage. We came upon Marfik's spot, in the sky, did that, and recalled from there. At the time my character was mounted on a flying young dragon, self-propelled.
Edited to not reveal IC info wrote:
The Corner of the Sky
            Floating improbably in the midst of the sky is a clump of
           earth, about five by five feet, looking something like a
     *     half-sphere.  Bits of dirt and pebbles fall from it occasionally,
           plummeting down into the void.  In the center of the patch of
           earth is a stone with an inscription written on it.   It's clear,
very, very hot, and calm.  
Obvious exits: s w sw
(Charmed) A young white dragon is flying here mounted by you.
Bunny is here flying on a silver-winged pegasus.
' 100% ' 100% '  97% '
You gaze out into the vast Realms of Chaos.
You feel the touch of Marfik on your soul.
' 100% ' 100% '  97% '
Bunny gazes out into the vast Realms of Chaos.
' 100% ' 100% '  97% '
You say 'neat'
' 100% ' 100% '  97% '
Bunny asks 'time to recall?'
' 100% ' 100% '  96% '
You say to Bunny 'are we goin to recall'
' 100% ' 100% '  96% '
 oOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOo
 o [Affects] Me.                                                        o
 o===-===-===-===-===-===-===-===-===-===-===-===-===-===-===-===-===-===-===o
 o Affect: 'detect hidden'                                                   o
 o Affect: 'detect invis'                                                    o
 oOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOoOOOo
' 100% ' 100% '  96% '
Bunny starts to concentrate.
' 100% ' 100% ' 100% '
Bunny utters the words, 'xafe ay candusqarr'.
Bunny disappears.
A silver-winged pegasus disappears.
' 100% ' 100% ' 100% '
You tell the group 'anyone there'
' 100% '  99% ' 100% '
Bunny tells the group 'oope'
' 100% '  99% ' 100% '
Group: !
(11:F1)  [------------]   (12:F2)  [     Me]   (13:F3)  [------------]   
(21:M1)  [------------]   (22:M2)  [------------]   (23:M3)  [------------]   
(31:B1)  [------------]   (32:B2)  [------------]   (33:B3)  [------------]   
Characters                 Rank    Pos    In room  Follow    HP    ME    PE  
Me                    Leader  12:F2  Yes      No      100%   99%  100%
A young white dragon       Member  ??:??  Yes      Yes     100%  100%  100%
Bunny                    Member  ??:??  No       No       96%   34%   65%
A silver-winged pegasus    Member  ??:??  No       No       80%  100%   61%
' 100% '  97% ' 100% '
Your stance is now neutral.
' 100% '  92% ' 100% '
You dismount from a young white dragon.
You plummet to your death!
Your equipment is scattered beyond retrieval.
You have been KILLED!!
A young white dragon stops following you.
You no longer see invisible objects.
You feel less aware of your surroundings.
A circle of stones
 rvv/---/f  Not far from the city of Teron, this small clearing is home
 rv/yyyyff to the renowned portal stones, of which several scatter the
  #--*yyyF realms.  Brave souls have been known to utilize the arcane power
 #rryyyyFf that is bound to the stones, travelling to far lands in the blink
 |yprrrrrf of an eye.  A path leads west through the fields, directly to the
city gate.  It's partly cloudy, cold, and calm.  
Obvious exits: n e s w nw ne sw se portal rift
     (Glowing) A mystical aquamarine portal flickers in the midst of the stones.
     A magical rift is glowing violently in the mid-air.
     A set of rune-inscribed stones frame the center of the clearing here.
Bunny is here flying on a silver-winged pegasus.
' 100% ' 125% '  67% '
You soar southwest.
Thistle Fields
 vrv/yyyyf  A field of lush green grass has grown up in this spot, marked
 # #--?yyy here and there by thistles and heather.  Occasionally one can spy
 y#rr*yyyF a bird's nest hidden in the fields or a gopher hole.   It's
 p|yprrrrr partly cloudy, cold, and calm.  
 /p\-----= 
Obvious exits: n e s w nw ne sw se
( 2) A scrumptious looking steak is here.
     A very ornately detailed statuette of a heron is here.
' 100% ' 125% '  66% '
The wind changes and begins blowing from the northwest.
' 100% ' 100% '  88% '
It is noon.
' 100% ' 100% '  88% '
You can't do that. You are dead.
' 100% ' 100% '  88% '
You can't do that. You are dead.
My first thought was someone pulled a quick cleave/backstab on me at the portal stones, but then I looked carefully and that's not what happened. As you can see, I died recalling while mounted on a flying pet. It went from: Mounted flying --> recall command --> dismount in the sky --> therefore plummet to death --> ghost recalled.
The recall command was typed in after setting stance to neutral. I don't play with command echoes so it doesn't show in my logs. Is this a bug? If it is not a bug, can we have some kind of safeguard against this kind of thing happening? If not, may this post serve as a warning to future adventurers.
(I forgot to test whether if a ghost can recall but from fuzzy memory I think it would say, "You can't do that. You are dead.")