Ok this might be a stupid question but how do I talk to Blake about the "Rumor about the beasts"? I've already talked to Benard, Logan, Harold and Rose about it but the only options I get with Blake is to shop, watch or give him a love potion
You need to do underground thing first. Find the mine and do small quest with diabosite.
I probably going to change that in the future and make talk option available earlier.