Secret of the Blood

Find out the cause of the violent poison in the Harpies' blood.

It's so hard to believe that this is real...

I always thought that the Harpies are naturally violent, but the research results of the blood samples state otherwise...

There is a type of poison in their blood that won't cause their death but causes the violence...

I believe that this poison has to do with what they eat. Can you help me look into this?

I can't determine what type of food is the cause of this, so please search for any suspicious looking food nearby. Maybe you can start searching from [111345|Strange Thicket]...

So this weird [202811|Berry] is the cause? It must be a new type of food, let me take a closer look...

What would happen if humans were to consume this poison?