Raul will first use his movement to flank giant rat 2 in hopes of finishing it off

"Enough of this cretinous affair!"

Attack: 7 Damage: 14

He will then drop his rapier and attempt to hide in a nearby crack with his bonus action

Stealth: 9

Raul drops all his armor and weapons as he tries to hide in a crack in the ledge. It's not enough to fully hide him from the rat's sensitive nose.

Dorgarag is up.

Dorgarag swings his mace down, trying to land a blow on the back of the rat in front of him.

Attack: 13

Damage: 4

Lumos scurried over and unleash an torrent of claw strikes with vicious ferocity at the rat Dorgarag is fighting.

Attack: 22

Damage: 11

Electricity crackles at Exteri's fingers as he attempts to finish the rat that Amnezia has already wounded.

Attack: 17

Damage: 5

Dorgarag and Lumos' strikes take out Giant Rat 3.

Exteri's electric attack takes out Giant Rat 2.

Giant Rat 1 desperately bites for Exteri.

Bite vs Exteri: 22

Damage: 3

The Giant Rat lunges at Exteri and takes him down! Exteri falls unconscious.

As Exteri is about to fall unconscious, he uses Strength of the Grave to attempt to stay up.

Make a Charisma Saving Throw, DC 11.

The blood from Exteri's wounds begins to bubble, spreading over his skin.

7

...and then the bubbling abruptly stops, as Exteri falls to the ground unconscious, his wounds bleeding freely.

Burntends, you're up.

Burntends sees Exteri fall. 

"I told you not to play with the rats! AND YOU LITTLE RAT I HAVE HAD IT WITH YOU" And he lets out what he thinks is a GREAT ROAR but is actually a whiny little cry...

DRACONIC CRY

As a bonus action, you let out a cry at your enemies within 10 feet of you. Until the start of your next turn, you and your allies have advantage on attack rolls against any of those enemies who could hear you. You can use this trait a number of times equal to your proficiency bonus, and you regain all expended uses when you finish a long rest.

Everyone has advantage against that rat. 

He moves up to the rat and attacks with his scimitar 19 for 9 Slashing damage. 

The mighty Burntends' scimitar strikes down the final Giant Rat. You all see the fallen Exteri, his life slowly draining from him, what do you want to do?

Burntends turns to Exteri and shoves a berry in her mouth quickly followed by 7 that he reclaims from others in the party. Keeping only 2 on his person. 

"EXTERI! EXTERI! Wake up" He smacks Exteri a bit too hard across the face after the first berry as tears are flowing freely onto Exteri as well. Burntends also manages to get Exteri's blood all over.

"I hope I can't catch your fragile blood disorder!"

Amnezia gives Burntends a thumbs up in admiration for swiftly dispatching the giant rat. Impressed by his comrade's quick action, he offers a word of praise before turning his attention to Exteri.

Casting Second Wind : 11

Then he  finds a comfortable spot near Exteri to sit and takes a moment to rest. With a sigh of relief, he leans back, feeling the tension ease from his muscles.

Dorgarag decides to wait and see what the magic berries do.  If things do not look promising soon, he will cast Cure Wounds.

Burntends' goodberries revives Exteri and brings him back to full health. Amnezia's relaxation technique brings him back to full health also.

What does the party want to do now?

"Well, now that that's over with, hi! My names Lumos, as I said before."

Amnezia notices the presence of the little girl and offers her a friendly salute before approaching her. With a curious expression, he gently questions her about what she's doing in this place, hoping to gain some insight into her presence here.

Then he suggests the idea of descending further into the unknown depths, seeking confirmation from everyone present and steps forward, volunteering to take the lead as the tank of the group.

Turning to the healers, he requests their support, asking them to keep a watchful eye on their rear flank as they advance. With the team's safety in mind, he ensures that they are prepared for whatever challenges may arise.

Burntends will peer down the stairs with his darkvision and look for further dangers... 

(22 Perception in discord)

Whispering back to the others "I suppose we must descend further, Exteri please stick to the back.. right behind me.. Let's have Amnezia go up front. Also, uh... this one is not Sylar." He points at Lumos.