This creature is known as a Trepsin. Found in the Central volcanic regions of your imagination, this creature has the ability to grant one wish but does not do so lightly. Proper compensation must be in order in order to grant the wish. A Trepsin doesn't usually ask for much more than you to help it find some food or to help dig out another room in it's den. Sometimes all that it might want is for someone to talk to for an afternoon. If it sees you as greedy or rude then it will ask you for a far more substantial request for compensation (usually involving some life threatening task in which you most likely will not succeed).