SOLVED. Science fiction? Possible a series? About a boy (and his family) who are in this town and they can't leave. The boy has a grandmother named Gram. That's all I can remember. [s]

[Kris]

Removed ALL-CAPS (capitals) from the topic header. Please don't use it in the comments either.

[Kelly]

Gram is a fairly common shortening of "Grandma/Grammy", at least in the Northeastern US. Maybe that limits it to that region? (or maybe it's common everywhere?)

[Wisp]

This Side of Paradise by Steven L. Layne?

[Kelly]

Snowed In with Grandmother Silk by Carol Fenner?

Not science fFiction, but a boy and his grandmother stuck in town.)

[Kris]

Snowed in with Grandmother Silk by Carol Fenner - Kelly's suggestion