Eddie will move past the building towards the sound, trying to move as quietly and carefully as he can.

(If needed Stealth: 17 Perception:10)

Zal doesn't so much as turn to look, but rather crosses his arms over his chest. "We know you're out there. Come on out and have a chat, or scoot for you find the sorta trouble that ain't worth it." He calls out, and only then turns in the direction of the noise. "But we don't got all night." He further warns as he squints, both to add to the intimidation and trying to better see if he can narrow down the location of their noisy new guest?

Perception: 7. 

The smell hits you before you see them.
Out of the darkness, much closer than you thought possible, about 15 ft., steps 4 humanoid figures.
They shuffle forward, stretching out their arms and uttering "UUUHHHHHHH"
Each is wearing coveralls, covered in dirt and some black substance. 
Their skin is almost white and hanging off their faces in spots.
4 Zombies approach Kae & Zal.
CC starts growling.

Eddie steps out around the building. Someone holding a pickaxe swings at his head.
Attack: 18
Damage, if hits: 7

The pickaxe embeds itself into the building next to Eddie.
2 figures stand on the other side of the building. They shuffle towards Eddie. One tries to pull the pickaxe out of the wood of the building, and the other moves forward towards Eddie, arms extended. 
Eddie faces two Zombies, dressed in overalls and 1 is wearing a hard hat with a small light on the front of it. Both are covered in dirt and muck. 

Initiative everyone, please.

Eddie's Initiative: 5

Kae's Initiative: 13 (11 + 2)

"AHHH! LIVING DEAD! MEAN GREEN BRAIN-EATING MACHINES!" Kae's hand immediately rockets into a pouch and tries to find something to fend off the zombies that are now swarming her and Zalos. Her other hand reaches towards a pocket knife on her belt.

Zal's Initiative: 10. 

"Okay, so that's like not what I expected." Zal says, somehow managing to at least sound calm as his own hands instinctively fly to draw forth his spear. "But hey, at least noone can't complain about us taking care of a few deadheads for them!"

4 zombies with Kae & Zal: 9

2 zombies with Eddie: -1

Initiative Order:
Zombies with Eddie: 18
Kae: 13
Zal: 10
Eddie: 6
Zombies with Kae & Zal: 0

The Zombie with the pickaxe  yanks it out of the side of the building and attacks:
Hit: 18
Damage, if hits: 4
The second Zombie lashes out with his hand, trying to grab at Eddie:
Hit: 23
Damage, if hits: 4

Quote from leapingmountain >>

Initiative Order:
Zombies with Eddie: 18
Kae: 13
Zal: 10
Eddie: 6
Zombies with Kae & Zal: 0

The Zombie with the pickaxe  yanks it out of the side of the building and attacks:
Hit: 18
Damage, if hits: 4
The second Zombie lashes out with his hand, trying to grab at Eddie:
Hit: 23
Damage, if hits: 4

 Both attacks hit Eddie. He takes 4 h.p. of damage from the 1st attack.
Eddie tries to dodge the first attack but ends up putting himself in a direct path for the 2nd zombie's attack. It lands solidly on Eddie doing 4 h.p. of damage with an extra 5 

Eddie is staggered but still on his feet. He is really hurt. 
Everyone may act!

"Try not to let them get too close, Zal. We better hope they aren't runners." Kae steps away from the zombies, but as she does so, she reaches into a pouch and pulls out... a fistful of rocks. Naturally, every good mechanic has a pouch full of rocks. In Kae's case, however, these are special rocks, with strange chrome rings around them. She gives them a little bit of a shake to activate then, then rears back to chuck one at the zombies. "Batter up!" The throw itself is fairly pitiful, but the rock picks up the slack. Perhaps by tiny rockets or perhaps by a magnetic compulsion, the rock starts to fly right towards the considerably damaged heads of the zombies. It hits one of them right in the cranium with significant power, seeming to almost force its way into the creature's decaying gray matter.

BONUS ACTION: Magic stone on 3 pebbles
MOVEMENT: 30 feet away from the zombies
ACTION: Attack a random zombie with a magic stone: NAT 20 to hit, 13 (6 + 4 + 3) bludgeoning damage

"Dollface you've been watching too many horror flicks over the scry pools." Zalosutuvan replied  with a touch of mirth to his voice. However, no amount of amusement over things could keep him from retreating closer to the ruins with the aim of eventually relinking with Eddie. "Ksst! CC. Back." He commands while hurriedly putting away his spear in favor forming a phone with his hands and putting it to his ear. "Yo Slick. Bad news. Got some serious freakazoids over here we could use your help sorting out. So hot foot it, if you don't." Is the message Eddie hears beside him, as well as the feeling of being able to reply in a like fashion without raising too much a ruckus and calling attention to himself.

... Not that it mattered.

Ma: 30 feet away from zombies/closer to the ruined village.
Ac: Cast Message to Eddie.

Kae launches a "rock" at one of the zombies. It hits dead center, passing through the rotting flesh of the creature and blowing a larger portion of its back out. If the creature felt it, it does not react, it continues forward toward Zal and Kae. 

Zal uses his "magic" to contact Eddie.

"I'm in a bit of a pickle here myself guys" Eddie mutters in reply to the message, before drawing his rapier.

He will swing at one of the zombies in front of him whilst yelling "Here's the boom".

Action: booming blade To hit: 8 Damage: 11 (if it moves additional 2)

Movement: Eddie will run 30 feet towards Kae and Zal.

Reaction: If any of the zombies attack Eddie with an attack of opportunity he will cast shield

Eddie utters the arcane words and lashes out at one of the zombies. By some miracle, Eddie's rapier connects.
Bits of the Zombie flies off as it does.
Eddie turns to run but, Eddie is still close enough to the creature for it to lash out at him.
Hit: 5
Damage, if hits: 6

Meanwhile:
Kae and Zal face two zombies each. The creatures surprise you both with how fast and nimble they are as they close the distance to attack you.
Zombie 1a-Kae:
Hit: 19
Damage, if hits: 6
Zombie  2a-Kae:
Hit: 18
Damage, if hits: 5
Zombie 3-Zal:
Hit: 4
Damage, if hits: 3
Zombie 4-Zal:
Hit: 22
Damage, if hits: 2

The zombie misses Eddie.

Zombie 1a lashes out with a jab, striking Kae.
Zombie 2a lashes out with a kick, also striking Kae.
Kae takes 11 h.p. of damage.

Zombie 3 lashes out at Zal but misses.
Zombie 4 lashes out and connects to Zal but Zal's gear deflects most of the blow. Zal takes 3 h.p. of damage.

Round 2: 
Eddie runs.
Both zombies pursue Eddie, though much slower. 
There is a loud "POP" that comes from one of the zombies. Its rotted flesh peppers the area. Eddie can feel bits of flesh hit him as he runs. The smell makes him want to puke.
Damage to Zombie 1 from booming blade: 7

Everyone may act!

"AGH! They're runners! 'Too many horror flicks' my rear end."

Acting quickly for fear of getting her brains eaten, Kae pulls a sizeable rock from her rock pouch, this one also with a chrome ring around it, and lightly tosses it in a seemingly random direction, away from the zombies that are currently beating her up. This apparently incompetent move proves itself to be anything but, as the rock slows the effects of gravity before it falls below waist level and suddenly propels itself towards the two living dead that are endangering its creator. The stone rockets towards the zombies much as its smaller counterpart did before, threatening to make a hole in one of the rotting corpses.

Object Interaction: Toss a rock to be in line with zombies 1 and 2, closer to zombie 1
Action: Catapult on the rock, sending it in a line towards zombies 1 and 2. Zombie 1 has to make a DC 13 Dex save or take 15 bludgeoning damage. On a successful save, zombie 2 has to make a DC 13 Dex save or take the damage instead

I assume Eddie is no longer in melee range with any of the zombies.

If that's the case he will pull out his compound bow and take a shot at the zombies harrassing Kae.

Action: Eddie will shoot at Zombie 1a (or zombie 2a if Kae's catapult has brought it down). To hit: 26 Damage: 6 Sneak attack:3.

Movement: Eddie will continue to move towards Zal and Kae.