Like I mentioned in the other thread about SB effecting the rest of Maine there are 3 options:
1. The town is there in a magical sense and can only be found by people who know. Anybody driving through the area would go through it and not notice any buildings, people, anything related to SB.
2. The town is physically there but the curse makes people avoid the area (like muggle repelling charms from harry potter as said earlier in this thread). They just take different routes or something. For that to work IMO without people noticing…SB can’t be on a main highway. Kinda weird if everybody avoids a main highway suddenly.
3. A bit out there but fun theory…the curse actually took the place of another town in Maine and all it’s inhabitants. (the original town and people are trapped in a limbo of some sort) Allthough, that would have to mean the curse changed the memories of everybody else who knows people in that town or area.
I also always questioned the Boston thing. So many cities of similar size are all over Maine. why drive 4 hours?