Answer:
I am a type of animal that hang out in the mist
What word begins and ends with an E, but only has one letter?
What has no beginning, end, or middle?
If you lose me you may cause people around you to lose me too.
My first is a heir; My second's a snare; my whole is the offspring of fancy; which I sent out of play upon Valentine's day As a token of love to my Nancy.
I fly to any foreign parts assisted by my spreading wings. My body holds an hundred hearts Nay I will tell you stranger things when I am not in haste I ride and then I mend my pace anon.