heart or mind quest. possible to do both meloni and koss?

hmm since search function is still not working...

i've done meloni's heart or mind quest and finished the game. now i am trying to do koss's one. seems like i can't do it. i take koss with me and go to the garden, nothing happens... any idea how to do this? thx

I did both the Koss and Melonni one, but what I did was to take both quest when they were presented i.e. I spoke and accepted when they were presented. They never disappeared when I took the other one. So I ended up doing both.