After the goblins get a clue in the town of the clockmaker, they continue to a mysterious forest.
Get a Flower
Have 
Fingus use the bottle on Kael (the tree person). Then
have him stand on Kael's hand. Next, have 
Winkle stand on
the long rock to the left of Kael's hand. Then have Fingus shake the branch on the left side of the tree. Winkle
will be launched up to the tree top.
Now have Fingus stand on
the long rock to the left of Kael's hand and have Winkle shake the branch. You will get a flower.
Get Honey
Have Fingus use the flower on the stone near the bottom-left
of the screen, then click the stone again to make a bee come out. You will get
honey.
Get a Mushroom
Have Winkle use the bottle on the nymph that is lying on a
rock near the bottom-right of the screen. She will wake up and fly to a branch.
Have Fingus walk up the dark grey rock in the bottom-left
part of the screen, then have Winkle click the stone that
is also in the bottom-left part of the screen. Switch to Fingus and have him click the bee that comes out of the stone. It will fly to the
branch that the nymph is on, and Fingus will hop off there.
Have Fingus use the honey on the nymph. She will show you
which mushroom to pick. Have Fingus jump down from the
branch and click the left side of the mushroom patch to get a mushroom.
Open the Door
Have Winkle knock on the door in the tree on the left side
of the screen. Then have him use the Mushroom on Vivalzart (the bird that opened
the door).
There isn't anything more you can do in this area right now, so move the cursor over the open door until it turns into a door icon, and click to go to Vivalzart's House.