Leap Castle Roscrea, Ireland
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Another source of evil was found at Leap Castle that may have compounded and nutured 
the spirt of the elemental.  A hidden ubliet (a dungeon) was found off the bloody chapel.  
It was a small room with a drop floor. Those who were forgotten within this room 
suffered unimaginable pain and misery until their death.  Prisoners would be pushed 
into the room to fall through the floor and land on a spike eight feet below.  
If you were not lucky enough to die quickly on the spike, you died of starvation 
in a doorless room while the aroma of food and the sounds of merriment drifted up 
from the rooms below.  A narrow window would let you watch those who came and 
went in freedom from the castle. Around c.1900  workmen who where hired to clean 
out the ubliet  made a hideous discovery,  human skeletons laid piled on top of each other. 
It took three full cart loads to remove all of the bones.  Among the bones workmen 
found a pocket watch made in the 1840's.  It is not certain if the dungeon was still in use then. 

The Smelly Ghost
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In 1909, Mildred Darby wrote an article for the Journal Occult Review, describing 
her terrifying ordeal. "I was standing in the Gallery looking down at the main floor, 
when I felt somebody put a hand on my shoulder.  The thing was about the size of a sheep.  
Thin gaunt and shadowy..., it's face was human, to be more accurate inhuman.  
Its lustful eyes which seemed half decomposed in black cavities staring into mine.  
The horrible smell one hundred times intensified came up into my face, giving me a deadly nausea.  
It was the smell of a decomposing corpse.

The elemental is thought to be a primitive ghost attaching itself to a particular place.  
It is often malevolent, terrifying and unpredictable. 

More on the Castle
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Leap Castle now has a weird reputation for frightening hauntings. 
An evil-smelling creature, half human and half beast, exuding 
an abominable stench, is said to roam its lower regions. 
Curious locals are said to have experienced them unwittingly. 
Moreover, the gruesome discovery of heaps of human bones on the 
floor of the wailed-up dungeon or oubliette, and of hooks 
(used for executions or hangings) in an adjacent field, known 
locally as "Hangman's Acre", have given added credence to the 
tales of these manifestations. There is certainly an extraordinary 
eeriness about the place which intrudes on the senses as one 
approaches the tower. Leap Castle now belongs to an Australian 
who plans to restore it and so dispel the obnoxious spectre. 

See also:   http://www.medieval-castle.com/haunted_castles_ireland/leap_castle.htm