I knew the climax was out there somewhere. I just didn't know how to get to it. Then, like a flash of inspiration - or the lights from an oncoming train* - something lit my way. I can see the way from here to there. The path from there to the end is still kinda hazy, but I'll worry about that when the time comes.
Wish me luck.
*Only time will tell whether this is blazing insight or a terrible catastrophe. ;o)