Why is my model(s) not becoming visible or making sounds?

So basically I have a model which contains seven parts. Those parts contain either nothing or a mesh... I grouped them up, and named it Assassin. Then I have a brick nearby and grouped it with the Model Assassin, and called it Thingymabob -- Don't judge. I want this Assassin to appear, when someone walks through the invisible, non-CanCollidable Thingymabob. So the Assassin starts off as invisible. (I also want several sounds to play when someone walks through it.)

So I made a script, but it's not working. Can someone help? This is the first script for the Transparency:

local Door = script.Parent.Thingymabob
Item = script.Parent.Parent.Assassin
a = Item.Head
b = Item.Sword
c = Item.Handle
d = Item.RLeg
e = Item.LLeg
f = Item.RArm
g = Item.Torso

function onTouched(hit) 
	print("Door Hit") 
	local human = hit.Parent:findFirstChild("Humanoid") 
	if (human ~= nil ) then 
		print ("Human touched door")
		a.Transparency = 0.9
		b.Transparency = 0.9
		c.Transparency = 0.9
		d.Transparency = 0.9
		e.Transparency = 0.9
		f.Transparency = 0.9
		g.Transparency = 0.9
		wait (0.5)
		a.Transparency = 0.5
		b.Transparency = 0.5
		c.Transparency = 0.5
		d.Transparency = 0.5
		e.Transparency = 0.5
		f.Transparency = 0.5
		g.Transparency = 0.5
		wait (0.5)
		a.Transparency = 0.2
		b.Transparency = 0.2
		c.Transparency = 0.2
		d.Transparency = 0.2
		e.Transparency = 0.2
		f.Transparency = 0.2
		g.Transparency = 0.2
		wait (0.5)
		a.Transparency = 0
		b.Transparency = 0
		c.Transparency = 0
		d.Transparency = 0
		e.Transparency = 0
		f.Transparency = 0
		g.Transparency = 0
		wait (5)
		a.Transparency = 0.4
		b.Transparency = 0.4
		c.Transparency = 0.4
		d.Transparency = 0.4
		e.Transparency = 0.4
		f.Transparency = 0.4
		g.Transparency = 0.4
		wait (0.5)
		a.Transparency = 0.8
		b.Transparency = 0.8
		c.Transparency = 0.8
		d.Transparency = 0.8
		e.Transparency = 0.8
		f.Transparency = 0.8
		g.Transparency = 0.8
		wait (0.5)
		a.Transparency = 1
		b.Transparency = 1
		c.Transparency = 1
		d.Transparency = 1
		e.Transparency = 1
		f.Transparency = 1
		g.Transparency = 1
		
		
while (human.health > 0) do
	human.health = human.health - 5
                            
end
end
end

script.Parent.Touched:connect(onTouched)

This is the second script for Sound:

local Door = script.Parent

function onTouched(hit)
	print ("Door hit")
	local human = hit.parent:findFirstChild("Humanoid")
if (human ~= nil) then
	print ("Human touched door")
	wait(1)
	script.Sound1:Play()
	script.Sound2:Play()
	script.Sound3:Play()
	script.Sound4:Play()
	script.Sound5:Play()
	script.Sound6:Play()
	script.Sound7:Play()
	script.Sound8:Play()
	script.Sound9:Play()
	script.Sound10:Play() -- I have 10 Sounds.
	wait(10)
end
end

script.Parent.Touched:connect(onTouched)

These scripts are inside 'Thingymabob'

Thank you.

It may be infected, Check all of your recent Free models and delete any scripts that are looking fishy.