Answer:
What lies in a tunnel of darkness. That can only attack when pulled back?
What has one eye but cannot see?
Reaching stiffly for the sky, I bare my fingers when its cold. In warmth I wear an emerald glove and in between I dress in gold.
My first is a creature whose breeding is unclear. My second, a price you must pay. My whole can be found in the river of Time and refers to events of today.
Different lights do make me strange, thus into different sizes I will change
I am your mother's brother's only brother in law. Who am I?