Bella does not want magic (except Alice's) to be able to tell where she is, or anything about her characteristics; she wants it to fail subtly when it can, fail unsubtly when it can't, and - well. Someone might already be magically spying on her. Maybe she can come up with a way to unobtrusively fade out...? Not likely. Not if they're paying attention.
no subject
Bella does not want magic (except Alice's) to be able to tell where she is, or anything about her characteristics; she wants it to fail subtly when it can, fail unsubtly when it can't, and - well. Someone might already be magically spying on her. Maybe she can come up with a way to unobtrusively fade out...? Not likely. Not if they're paying attention.