Story - Part 1 - The way to Icespire peak

You need to pass the barrier to see the master. Master always had to turn into the color of the barrier to pass through it. He always did it somehow but I don't know how the bird squawks

Did he drink any potions before changing color Garic moves cautiously around the room looking for anything matching the barrier color

Vienne looks at the barrier at the birds words, and attempts to see what she can see magically, hopefully locating the potion they need. Or at least understand a bit more about this stuff.

Yes the master drank potions before going upstairs. He had a potion for nearly everything he did the bird replies
Garic looks around the room. In front of the still are three flasks containing coloured liquids. Unfortunately they are blue, red and green.
He looks around a bit more but doesn't find anything. Discouraged he looks to the ground at the broken flasks. Multiple liquids have mixed up.
And he can also see some pink spots. Unfortunately he can't discern which of the potions created the pink colour.

Vienne meanwhile feels the magic of the barrier. Whoever crafted this barrier was a very skilled magician. She can't hope to counter that magic with her own.
But she can't feel anything hostile about the barrier. It's just here to prevent passage, not to harm you. So you should be safe to experiment with it.
She tries to push the barrier but shortly before touching it an unseen force opposes her, as if someone was pushing against her hand. Even with all her strength she can't counter that force. She pulls her hand back and the force disappears.

Vienne stares a bit longer at the barrier before speaking up to the others, testing the force briefly once more. "I think this person just wants to be left alone. The magic is...amazing really, but it doesn't seem like it will hurt us." She turns to the bird to ask a question. "Is there a way you can send them a message? Really we'd just like the gopher fixed."

In starting to feel a bit bad actually. I thought this place was abandoned. Then the gopher won't come in. The bird days his master is still here. Something isn't quite right. Trying to communicate with the master does seem the right thing to do at this point.

Hey bird is there some way to contact your master?
Garic tries to recall if there was a door knocker or bell anywhere outside or on the first floor.

Sprout kneels close to Garic and whispers. "Do you recall what triggered the golems downstairs?"

Wasn't it just because we passed the shelves?.
Though good and kind Garic isn't always observant of details. Add in his goblin inclinations for pranks and Tom foolery and he sometimes gets himself and others into trouble with meaning to.

"If that's so then I wonder what the master had them set to do?"

A message for the master? I can send him one. Wait... the bird says and is then completely still. After a few moments the bird moves again
No answer from him. It has been 716 moons since I last heard back or seen the master. This is the longest experiment the master has conducted so far

"How can you be sure that he's still there?"

He never came down since the last time he went up. So he is still up there. the bird replies in its mechanical voice

Lets see 12 moons to a year . . 715 moons . . . umm yeah that's a long time to stay up there I am pretty sure he died or something really strange happened
Feeling a bit better about their action, though sorry for the wizard, he turns his attention to the potions.
blue, red and green looking for clean empty mixxing containiners Garic will begin carefully mixing minute amounts to attempt to recreate the required color. Start with more red and add green. Just like when I was learning to be an apothicary he laughs a bit at the memory but makes sure to control and record the amounts used

"Has anything or anyone else come down in that time? That is a very long time for no movement..." Vienne watches Garic with interest as she asks the bird. He was being so scientific about it!

No. Master has not returned. Only the stranger that broke the shelf went up but never came down again. Then there was noise and an animal looking like a rat came down. Then the barrier went up and noise came from downstairs. the mechanical bird squawks

Garic meanwhile experiments with the potions. He quickly finds some small glass containers and first mixes the red and green potions. The resulting mixture turns yellow.
He experiments a bit more and ultimately finds out that mixing the red and blue potions gives him a potion that has a color very similar to the barrier.
There is enough potion left to create a whole flask of the pink one.

Her expression seemed to sharpen as the bird talked. "Is our gopher acquaintance separate of that?" Might explain why the little chap didn't want to come in.

Well all the stories are lined up now. The adventureer went up and cam down as a gopher as witnes by the bird her and then the shield activated. The questions remain, what happnd to the wizard and how many of us can be affected by the potion once I mix it, assuming it works He smiles a bit sheepishly
We said we would try to hep the gopher so I shal try. Let me know when everyone is ready to go up and I will mix the potion.

"I'm ready when you are, Garic. Mix away."

Mixing the potion Garic so then quickly so the brew. If/when his color matches that of the barrier he will hand the bottle to Sprout before walking up to the barrier, reaching out to touch it, and pad through if possible.

Garic mixes the red and blue potions until the colour matches that of the barrier. He gives the flask to Sprout and tries to walk through but the barrier repels him.
Seems like mixing the potion alone isn't enough. Apparently you have to drink it too...