They had rented rooms in the hobbit portion of the inn, and it’s implied that the ‘mean swarthy-looking person’ who ‘looked more than half like a goblin’ who was staying with Bill Ferney ratted them out to the Nazgûl as well.
Strider did the sensible thing and had them stay in his room instead.
It’s stated that the Nazgûl cannot clearly sense the ring unless it’s worn by someone. They know it’s nearby, but not how close. That’s also how the hobbits and Aragorn slipped away into the wilds without being caught too.
They had rented rooms in the hobbit portion of the inn, and it’s implied that the ‘mean swarthy-looking person’ who ‘looked more than half like a goblin’ who was staying with Bill Ferney ratted them out to the Nazgûl as well.
Strider did the sensible thing and had them stay in his room instead.
It’s stated that the Nazgûl cannot clearly sense the ring unless it’s worn by someone. They know it’s nearby, but not how close. That’s also how the hobbits and Aragorn slipped away into the wilds without being caught too.