Gunra, realizing that Nurm may have saved his hide, gives the gith a look of gratitude before continuing his uncomplicated assault against the drakes.

Before it can break free from its psychic damage-induced confusion, the confused drake is killed in a flurry of blows.

Meanwhile, Kane shakes off the dying drake to the ground before finishing it off with a blast of eldritch magic. The blast reduces parts of the already injured lizard's body to smithereens.

The two drakes are dead. The combat is over.

Kane sits down for a moment and holds his injured arm. “Agghhhh...” he groans. He takes out a cloth wrap and wraps it around his arm. “I..should be..be fine. The drake didn’t bite too hard, but man, that hurts. Let’s hurry up and find those eggs.”

Petmailer bends down and helps Kane tighten the bandage on his arm, tending to his wounds.  "Hang in there.  We need to keep moving fast, if we are going to make it out of here.  Let's move."  Petmailer's training as a Shadow Sentinel kicks in, he tries to bolster the courage of his comrade and get him to rally.  

Petmailer starts to quickly investigate the northern alcove in room 11 and also the eastern wall.  If no way forward is seen, we should go back the way we came..

He also retrieves his two arrows from the dead drakes.

Kane manages a smile and Petmailer helps him. “Thanks.” He gets up and follows. “I hope these eggs are from metallic dragons...those are the good ones..right?”

Gunra stows his axe and picks his torch back up, watching Petmailer whisk around the room.  He nudges one of the drakes with his foot, satisfied that it was no longer a threat.

"There are exceptions to any rule, but yes. . . dragons of the metallic colors are usually a little less cruel than the ones with simpler colors.  But there you get the whole 'nature and nurture' thing."

Unwilling to step on Petmailer's proverbial cloak, he keeps an eye out behind the party, hoping they still had time.

This chamber has been enlarged and reshaped from its original form. The floor and three of the walls are smooth, and stalactites and stalagmites have been polished into gleaming columns. Every surface glistens with moisture, and the air is warm and humid. The flat walls of the chamber are decorated with shallow abstract carvings of dragons. Dragons’ tails coil into intricate patterns and knots that flow across the walls. The creature portrayed in the northwest corner stands out: a five-headed dragon, rising from an erupting volcano. Other dragons, which seem dwarfed by the five-headed monstrosity, flock to its side. A small, wooden chest with silver and mother-of-pearl inlays sits on the floor in the corner, in front of the monstrous dragon carving.

Sitting on this corner, you spot a tall draconic creature on its knees, praying in front of the five-headed dragon carving and the treasure chest.

His eyes are closed, and he's so deep in prayer that he has yet to see you or hear you come in, but after what happened at Greenest you could recognizes him anywhere: There, right in front of you, is Langdedrosa Cyanwrath. You can overhear some parts of his prayer.

"Chromatic Dragon, conquer their weakness. Burn this world, and rebuild it on our shape..."

Nurm looks around, to make sure there are no other cultists nearby. When he is sure there is only the dragonborn, he silently gestures at his companions to silently return to the previous room. If they decide to follow him, they silently discusses the further tactics with them. Our last engagement with him didn't went too well, but this time, we have the numbers on our side and we might deal a great blow the cult.

Edit (Initiative): 3

Petmailer whispers "Agreed.  Let's hit him with everything that we have.  Everyone think of your strongest attack, I think this is an excellent chance to surprise him."  He nocks an arrow, "Everyone ready?  Revenge!  Ready to take him down, Gunra?  You have friends helping you now..."

When Gunra is informed of Langdedrosa's presence in the next chamber, he looks down for a moment.

"I know there is no shame in asking for help. . . but still. . . ."

He backs up and casts [spell[Zephyr Strike[/spell] before getting into position for their ambush.

Kane spots Cyanwrath praying and ducks behind a rock, “We do have him outnumbered, but what’s going to happen when the cultists outside hear fighting from these caves? They are going to come investigate, so we should be prepared for reinforcements.” On that note, Kane readies Eldritch Blast and gets ready.

Initiative: 17

Harmony will continue to hum her quiet tune, giving a d6 inspiration to Petmailer. She grips her sword tightly and prepares to run in with the others.

Initiative: 14

Petmailer moves into the room and along the side wall, looking for his spear / weapon.  If he can use stealth and reach down to grab it, he will do so.  He won’t obviously if Cyanwrath is holding it.

Otherwise, he takes careful aim and shoots an arrow, aimed for his heart.  

Attack: 21 Damage: 10

Cyanwrath's initiative: 18

Petmailer, the spear is being holded by Cyanwrath, so he's not weaponless even when praying. His greatsword might be somewhere on the chamber, though.

The arrow hits, but it misses his heart. Regardless, now he has an arrow painfully piercing his back. He growls in pain and anger as he rises to look at his attacker.

"Shooting in the back, how cowardly" He roars. As he turns to look at his foes, his draconic eyes stop on Gunra. He smiles.

“You survived! I don’t know whether to be disappointed or pleased. It’s a mix of both, I think.” He hisses. Then, retaliating first against the one who shot him, he aims his spear against Petmailer. "Let's see if your friend is weaker than you!" He smirks as he does.

Regardless of whether it hits or not, Cyanwrath will then try to search for something in the space alongside the treasure chest, leaving his back open for more attacks in the process.

Against Petmailer:

(Things seem a little wibbly-wobbly, so make adjustments as you see fit.)

Gunra scoffs.  He wasn't going to take lessons on honor from a half-breed who had attacked unarmed farmers.

"Indeed I live!  You have an impressive birthright, but unsurprisingly for a slave of Tiamat, you waste it!"

He rushes in, channeling the power of Zephyr Strike.

Attack: 19 Damage: 11

Petmailer takes the opportunity with Cyanwrath’s back turned to fire another arrow into his back side with his action surge, seeing the opportunity and seizing it.  

Attack: 24 Damage: 4

”You piece of filth.  The memory of you will fade into nothingness.  So foolish, and so misguided!  Don’t you know that you are following a false God?  You will not leave this chamber.”

With before unseen rage, Nurm points his hand towards the dragonborn, and as his necklace turns bright, three globes leave Nurms hand and hit the Cyanwrath.

Magic Missile: 3, 2, 3

Harmony charges in towards the fumbling Cyanwrath, uncharacteristically silent. She strikes at his exposed back with her rapier while she has the chance.

Attack: 21 Damage: 3

Kane casts Eldritch Blast at the Dragonborn, not really keen on hitting an opponent in the back, but Cyanwrath is evil..so..it’s kinda justified. 
Attack 18

Damage 12