Here's the problem. The story is two-fold. Half (give or take) takes place in the 1950's when Jack first faces the alien and meets the OC I created for a different story and wanted included in this one. The other half occurs in the present, when Jack has gotten a mysterious message that the OC is in trouble and knows it has something to do with the alien from back when.

My difficulty has been figuring out not only what kind of alien it is, but why Jack would have left the job half-finished back in the 50's.

I have a few random ideas, but they haven't gelled together yet.

Did that make any sense?