Upside-down and invisible, Peri carefully fiddles with the rope, trying to create a jam. (Make a Dex check.)

----

Meanwhile, Gerrard manages to catch up to the fleeing sahuagin. 

Opportunity Attack:
Sahuagin #3 Spear Attack vs. Gerrard: 17  Hit: 5 piercing damage.

Qivys may act next!

√ Borgas
   Sahuagin #1
√ Sahuagin #2
√ Sahuagin #3
√ Gerrard
   Qivys
   Sea lion
   Oceanus
   Kysh

Peri:

DEX check: 15 

Qivy s shakes his head "I'll prepared for this mission." he thinks to himself.

Qivys reaches out with his mind and attacks the creature.

Mind Spike damage (if fails the save): 6

Qivys uses the energy that flows through him and expends 2 Sorcerer points to make a second attack with the same spell (Quicken)

Damage (if fails the save): 9

(if the first attacks takes out the sahaugin then he will not make the bonus attack action)

Quote from leapingmountain >>

Qivy s shakes his head "I'll prepared for this mission." he thinks to himself.

Qivys reaches out with his mind and attacks the creature.

Mind Spike damage (if fails the save): 6

Qivys uses the energy that flows through him and expends 2 Sorcerer points to make a second attack with the same spell (Quicken)

Damage (if fails the save): 9

(if the first attacks takes out the sahaugin then he will not make the bonus attack action)

 damage for the Mind Spike : 15

Boktopus makes it easy to grab hold, and then she's happy to get out of this room and back into the hallway.

With a quiet word, Qivys reaches out with his mind to plant a psychic flag into the brain of the retreating sahuagin.

Sahuagin #3  DC 13 Wisdom Save: 21

The wounded sea lion, spotting the retreating sahuagin, gives immediate chase, risking a hit from its current prey.

Opportunity Attack: Sahuagin #2 vs Sea Lion: Spear Attack: 20   Hit: 6 piercing damage. 

The swiftly swimming sea lion quick catches up with the fleeing sahuagin and leaps upon it:

Sea Lion Bite Attack vs. Sahuagin #3: 23. Hit: 9 piercing damage.
Sea Lion Claw Attack vs. Sahuagin #3: 21. Hit: 17 piercing damage.
Sea Lion Claw Attack vs. Sahuagin #3: 21. Hit: 17 piercing damage.

With Gerrard gone, the rest of you are left in total darkness again.

Oceanus charges in on the second sahuagin.
Trident Attack #1 vs Sahuagin #2: 15. Hit: 4 piercing damage.
Trident Attack #2 vs Sahuagin #2: 16. Hit: 7 piercing damage.

As does Kysh:
Spear Attack: 16. Hit: 6 piercing damage.

-- Top of the Round --

...And Borgas, thrashing out blindly in the darkness:
Spear Attack: 12. Hit: 4 piercing damage.

The sahuagin mentally twists away from Qivys' (first) mental assault. The spike fails.

The Sea Lions' attacks mostly fall flat against the tough sahuagin, although it does strike with one glancing claw. The Sea Lion itself is starting to look pretty bloodied.

Oceanus takes down the second sahuagin, leaving Kysh and Borgas without a living target.

The surviving sahuagin, caught between Gerrard and the Sea Lion, takes out its aggression on Gerrard:
Spear Attack #1 vs. Gerrard: 24. Hit: 4 piercing damage.
Spear Attack #2 vs. Gerrard: 21. Hit: 4 piercing damage.
Spear Attack #3 vs. Gerrard: 21. Hit: 9 piercing damage.

It then breaks free and races east, calling out an alarm. Gerrard may have an opportunity attack in addition to his turn.
Sea Lion Opportunity Bite Attack vs. Sahuagin #3: 19 Hit: 16 piercing damage.

Gerrard and Qivys are up!
(Gerrard may have an opportunity attack; Qivys may clarify his quickening from last turn and we'll retcon that.)

Meanwhile, after successfully and invisibly sabotaging the rope with a subtle jam on the ceiling, Peri joins Boktopus and Krill on the other side of the room.

The sauhagin remain none the wiser of the intrusion. The gate remains closed at the far side of the room.

Kei remains behind at a safe distance, watching through Krill's eyes.

Gerrard:

Suffering the attacks as he goes by as well as the additional stabs, Gerrard tries to grab the remaining Sahuagain and drag it back towards the prison.

(Gerrard should be about 20 feet further east from last turn.  Opportunity attack plus second wind plus up to two attacks to grapple.  Move as much as possible with the Sahuagin back towards the room, so if AOO gets it, move plus dash)

AOO Athletics Grapple:  11

Second Wind: 14

Attack 1 Grapple:  15

Attack 2 Grapple:  24

Gerrard tries to tackle the fleeing sahuagin. 

Contesting Sahuagin Strength check: 21

Success! Gerrard grabs the spiny humanoid and begins to drag him back as far as the Sea Lion, whose bulk fills the corridor. The sahuagin continues to shout. 

Qivys is up!

Gerrard:

”Quick!  Box him in and take him down!” says Gerrard.

Qivys will just use Mind Sliver to attack the remaining Sahaugin.

Damage, if successful: 2

Qivys swims to the edge of the intersection, to where he can glimpse the last sahuagin behind the huge sea lion.

Sahuagin INT Saving throw: 2

The Sea Lion tears into the grappled sahuagin:

Sea Lion Bite Attack vs. Sahuagin #3: 25. Hit: 11 piercing damage.
Sea Lion Claw Attack vs. Sahuagin #3: 22. Hit: 11 piercing damage.
Sea Lion Claw Attack vs. Sahuagin #3: 21. Hit: 14 piercing damage.

Oceanus and Kysh swim to the intersection, just past Qivys. They ready their weapons, but they are too far away to try to attack the sahuagin, who has partial cover from the huge sea lion.

The grappled sahuagin winces as the effects of Qivys' successful Mind Sliver take root in its brain.

The Sea Lion savagely tears at the face of its prey. Crit damage: +11.  It's looking quite badly injured.

-Top of the Round - 

Only Borgas is left behind in the torture room. "Hello....? What's going on? I can't see!" he calls nervously.

The sahuagin struggles to escape. Rather than use its weapon, it strains against Gerrard to get loose, howling in complaint.

Sahuagin strength check to break grapple: 17
(Gerrard: make a contesting strength check. If it breaks free, it will make a run for it, 40' east, in which case you will get another opportunity attack.)

Gerrard:

Athletics to maintain the grapple:  18

Gerrard:

Maintaining a hold on the Sahuagin with one hand, Gerrard stabs at it fiercely with his glowing rapier held in the other.  If  it goes limp in his hand, he will pull it as far back towards the  prison as he can, hoping its cries are drowned out by the bloodthirsty shouts in the arena.

Glowing Noble’s Rapier:  Attack: 24 Damage: 8

Glowing Noble’s Rapier:  Attack: 12 Damage: 12

As he drags his captive westward, Gerrard manages to stick a blade through his tough natural armor, but somehow the sahuagin is still alive and trying to shout. Gerrard manages to just push past the sea lion to the edge of the intersection where most of the others are waiting.

The hallways remain empty and quiet, except for the roar of the crowd to the south. No aid has arrived to heed the sahuagin's calls so far.

Qivys may act next. The sahuaguin is near death, grappled by Gerrard, and surrounded by your party.

Qivys will take out a dagger and stab the the thing.

Hit:  13

Damage if hits:  7