Many of you (and I) have seen these ideas before but they're important. Something must happen to thrust the protagonist through the first doorway SO HE CAN'T GO BACK. If the protag can just shrug, say "Nah.", and go back to his ordinary life the author hasn't done his/her job. Similarly, the second doorway must also be a point of no return.
Tricky. Did I do this in my WIP? I better go back and analyze some more.
How about you? Any tips or tricks for creating points of no return? Thanks!