We're confined to the island and the water near it.
The thing which brought us here, which we call the Core, starts hurting people as they get more than a mile offshore. If your pain tolerance is good, you can make it several miles, but then it starts actually harming you, and if you get far enough away anyone will pass out and die.
Also ... this place isn't connected to your home in any normal fashion. You could sail around the world and not see your home. If the Core released you without sending you here, someone would have to send you across the dimensions.
Re: Returning your call.
The thing which brought us here, which we call the Core, starts hurting people as they get more than a mile offshore. If your pain tolerance is good, you can make it several miles, but then it starts actually harming you, and if you get far enough away anyone will pass out and die.
Also ... this place isn't connected to your home in any normal fashion. You could sail around the world and not see your home. If the Core released you without sending you here, someone would have to send you across the dimensions.