How did Gandalf know that Bilbo found The One Ring? Why didn't he know where it was kept for all those years until Frodo brought it to him at Rivendell? - Quora
Gandalf knew about the Great Rings long before Bilbo found his ring. So why didn't Gandalf put the ring in a fire, just to see what happened? If he did the Ring
![So What *Did* Gandalf Know About the Ring? (And Why Didn't He Do Anything About It?) [Part 2 of 2] – It's a Dangerous Business, Frodo So What *Did* Gandalf Know About the Ring? (And Why Didn't He Do Anything About It?) [Part 2 of 2] – It's a Dangerous Business, Frodo](https://sweatingtomordor.files.wordpress.com/2018/04/36842006746_8f93347c70_k.jpg?w=705&h=435&crop=1)