The last nine hundred years haven't been kind to Spike.
 
Unable to live in pony society at his current size, Spike sets off on a journey to find the spell that can revert his rampant growth. But he's not the only one searching for the cure.

From a lost library buried deep under the frozen north, to the seedy depths of a starlit metropolis, to the desolate surface of the moon, Spike will go to any length to reclaim what time and biology have taken from him--if the journey doesn't kill him, first.

 
A story about coming to terms with yourself. Also an entry for the May Pairings Contest.