Dimension of Reminiscence - The Edge

Reyka's place. I helped someone else with a PM with this, so I'll just copy and paste that.
The Forest of Reminiscence orbs appear when you've defeated that boss. According to my data, that boss is....Reyka.
Reyka can be found by going into Zure's map ("Dimension of Reminiscence") and talking to the crossbow-shaped structure near the side. Hence, "the edge." Let me see if there's an SS of what I'm talking about on the forum...um....nope. Better boot up my game.

Walk up to it, and presto!
Good luck. Reyka's pretty difficult.