Who Am I? Chapter 22

OK, dear readers. You've read the story, maybe sent in some reviews – for which I truly thank you – but we aren't finished yet.

I unintentionally left a few loose ends, for one of which I also unintentionally wrote the solution into the story.

The question is: How did Gambler find Erik?

There are no prizes for the correct answer, just a bit of fun.

And please post your answer in a PM and not on the open forum.