"I wish to read this book and see what secrets it holds. Find a way to open it."
"What I want to know is how did it come to be in our possession?"
"Tell me of it. Who wrote it? Where did it come from?"
"Well it has come to our hands. Therefore, we shall further investigate its secrets."
The maester enters, clearly overjoyed. "I've found reference to the book in an old diary, my [lord/lady]! It's called the Seeds of the Gardener."
"It came from House Tyrell after you were made a new [lord/lady]. It was hidden among taxation ledgers. I suspect they didn't know they were sending it."
"How do we open this book? The puzzle lock is impossible to pick."
"The Knot is wood cut from a godswood tree, and acts as both key and code-breaker for the book. I believe it is hidden in Highgarden,"
"According to the diary, it was written by none other than Garth Greenhand--the first King of the Reach who it is said could bloom flowers at will."
"Very well. Find this key, Maester Lucas. I want to know what these Seeds contain."