Drift

Albert Einstein simply called it the 'Drift,' where time and space would unexpectedly drift apart for a short period of time and then come back together at an unpredictable place in the future.
It was a theory that received little press in 1938 and even less support from the scientific community at the time. Einstein went on to pursue other theories that were more acceptable and ultimately dropped the theory of 'Drift.'
But now, one powerful creature that had been caught in the drift fifty million years earlier had suddenly reemerged - a sea creature that had now adapted to living in the air.