Linking Amit and the guardian monster of Reed Garden was not because the Black Earl held some crucial clues, he was only speculating.
However, it wasn't baseless speculation.
The guardian monster of Reed Garden is just a legend in the Wild Realm, not much noticed; but its master—the god of Reed Garden, Yalu God—is a famous Wild God in the Wild Realm.
Many magical creatures trace their origins to Him.
For instance, ancient mythology in the Wild Realm records that: Yalu God specifically created a kind of powerful magic monster to build Reed Garden, to lay down the fragrant Sleeping Mountain with fruit honey wine, to open the endlessly clean water of Manluo Stream for Reed Garden, and plant exotic flowers and herbs in the forest sea of Rosemary Forest...
