The Fifth Elephant is the sad ex-mount of the fifth 'horse' rider of the apocalypse, who was disowned by the four riders we have today for his unconventional choice of mount. Blaming his trusted friend, the fifth rider abandoned the fifth elephant and set off to find a more suitable creature to ride.
Thus was born the Fifth Elephant, grumpy and disgruntled it wanders the wastes crushing the hopes dreams and spines of heroes unfortunate enough to meet it. Some say that only its old master can calm it, others say that humble offerings of fruit may help. Yet others say it's too dangerous to look into and use that old phrase 'let angry elephants stomp'.
The truth is that much is still unknown about the Fifth Elephant. One thing we know for sure is elephants never forget. So good luck.