Move up between Runt and Dev, take the dodge.

"For the love of--" Devarus promptly closes the door back up and tries to hold it close while calling out to Elsara. "We got four more incoming! Quickly! Destroy that sword so we can try the door past it! I'll try to delay the other armored ones here.

Action: Close and hold the door shut.

((Elsara lacks the movement to get between Runt and Deva because passing through allies space is counted as taking twice movement))

Deva moves in and opens the door and then immediately shuts it and holds it shut. Elsara moves up behind him.

Val and Runt's turn.

 MAP: https://docs.google.com/spreadsheets/d/1_QklefscGuKe-4tRdLx6UB_fNo7HWI33AnVKWsPICaw/edit?usp=sharing

Well if Elsara can't get there with her extra movement, she'll help Deva reinforce the door, should he need to make a check shortly.

((Noted))

Val moves up the stairs and fires on the sword but the arrow flies past the floating sword and hits the wall.

Runt's turn.

MAP: https://docs.google.com/spreadsheets/d/1_QklefscGuKe-4tRdLx6UB_fNo7HWI33AnVKWsPICaw/edit?usp=sharing

Bump. Waiting on Runt's turn.

(If I'm reading the map right, Eunt is still in melee with flying sword)

Runt takes a couple swings of her axe at the flying sword

Attack: 29 Damage: 27

Attack: 19 Damage: 10

Bonus thunder damage 6

Helmed Horror3 dash to the door. Tries to open with free action, Auto-fails because Deva is holding it shut. No action to try and push through. Helmed Horror 3 falls back to move out of the way (S14)

Animated Armor3 STR to push the door open: 17 vs Deva's STR: 23
Door doesn't open. Constructs can't pass through it this turn.

Door at U20 opens, damaged Helmed Horror2 arrives with Heavy Crossbow Animated Armor6

 MAP: https://docs.google.com/spreadsheets/d/1_QklefscGuKe-4tRdLx6UB_fNo7HWI33AnVKWsPICaw/edit?usp=sharing

Runt chops the flying sword and with a loud boom, the sword breaks into two. The Door Deva was holding shut shakes as Helmed Horror3 shoulder-checks the Door but bounces back. The sound of clanging metal can be heard as the constructs take position behind the door. Animated Armor4 tries to force the door open but Elsara and Deva manage to keep a grip on the door and keep it shut. The door the party passed by on their way to the second floor slams open and the battered form of Helmed Horror2 enters the hall, leading Crossbow wielding Animated Armor reinforcements.

The fire continues to burn the house down. This is a bit more literal than metaphorical as the party hears the loud crashing noise coming from some other room in the mansion.

Party's turn.

"Oh you've got to be kidding me!? Where were these things when the house /wasn't/ on fire! Goodness me!" Devarus looks a bit flustered between the held door and the armored creatures to the south, before cursing under his breath. "We'll have to chance it! Follow me!" With that, he lets go of the door and hurries northward past Runt yet hopeful would do as he said as they sought a window or any other exit point by then. 

But he was an old half-drow thru and thru. A fact that became harder to ignore as he felt himself started to struggle carrying the vampress to the next door and try to open it. If such did not work at that,. then a half-elf's armored foot would find itself beign rammed base first  to knock it open. 

Movement: Rush to V-9. (20ft)

Free action to Open northern most door if possible (and if not, here's an attempt to break through roll)
athletics: 17. 

(Remaining movement and bonus action to be determined by what's beyond the northern most door(U-9).

Deva opens the door and finds a long hallway that bends north sharply, preventing him from seeing what's there. At the spot where the long hall bends, there is a door to the west and a south door. The south door undoubtedly leads back to the trophy room that Deva was holding shut not too long ago.

What does Deva do with the rest of his turn?

 MAP: https://docs.google.com/spreadsheets/d/1_QklefscGuKe-4tRdLx6UB_fNo7HWI33AnVKWsPICaw/edit?usp=sharing

"Ffff-okay old man. Home stetch." With a grunt of pain, Devarus continues to barrel down the hallway on the double and even almost on the triple! Although he nearly stumbles a long the way while trying to keep the shoulder vampire balanced.

(Using remaining movement, action to dash, and bonus action on improved fall back to move to K-9 or as close to that as possible)

Deva makes a break for it. He gets almost all the way to the bend in the hall way.

 MAP: https://docs.google.com/spreadsheets/d/1_QklefscGuKe-4tRdLx6UB_fNo7HWI33AnVKWsPICaw/edit?usp=sharing

Val, Runt and Elsara's turn.

Valwaryn fires an arrow at the helmet horror in the alley and runs behind Deva.

Attack: 17 Damage: 10

Runt follows Deva as fast as she can. Dashing to keep up of need be.

Runt dashes right up behind Deva. Val shoots and his arrow breaks against the heavy steel body of the horror. Shooting the armor used up a bunch of Val's time and prevented him from getting very far, just being able to reach a turn to be in eyesight of Deva and Runt.

 MAP: https://docs.google.com/spreadsheets/d/1_QklefscGuKe-4tRdLx6UB_fNo7HWI33AnVKWsPICaw/edit?usp=sharing

Elsara's turn.

Elsara chases after the others, dashing to M20

Elsara dashes to M20

Enemy Phase

Helmed Horror4 moves to V21 attacks Val.
Sword: 16 Dmg: 8
Sword: 11 =Missed=

Animated Armor 4 opens door and moves to V22. Attacks Val with Halberd.
Halberd: 18 Dmg: 3
Halberd: NAT20 (Oh no) Dmg: 16

Helmed Horror3 Dashes to J22
Animated Armor5 Dashes to 23J

Helmed Horror2 dashes to V23

Animated Armor6 moves to 27V. Shoots Val

Crossbow: NAT20 (WHY!?) Dmg: 19 ((OOF))
Crossbow: 8 =Miss=

VAL IS DOWN.

Fire Continues to spread.

Elsara runs at full sprint and catches up to Deva and Runt. That leaves Val lagging behind, a fact that the constructs take full advantage of. While Helmed Horror 3 and Animated Armor5 run back through the trophy room to try and cut off the fleeing party, they can't quite make it. Helmed Horror4 runs out of the door that Deva had held shut a few moments ago and runs up to Val. It unleashes two swings of its sword, slashing across Val's face. Animated Armor4 with its polearm is not too far behind. It thrusts from behind Helmed Horror4. One of the hits catches Val in the shoulder while the other leaves a grisly wound straight on his neck, causing the elf to spurt out a ton of blood. Then the severely damaged Helmed Horror2 clanks up behind the halberd wielding armor. Finally The last animated armor runs up the stairs, barely getting into shooting distance of Val. It fires a shot. The shock of the shot causes the whole crossbow to rattle. The bolt cuts through the air and strikes Val square in the chest, blowing a hole through the druid and sticking to the wall behind him. Val goes down.

Party's Turn.

VAL ON DEATH SAVES!