Sael cannot stand being in the back and unable to do anything.  She yells out "Don't cut it, smash it!" , then turns and races past the dwarves, turning left around the bend into the sanctuary, feeling along the wall as she goes for any sign of another secret passage that may lead her to the other side of the jelly.

Investigation: 19

In a stroke of luck, Sael spots what she thinks it's a button for another secret door on the opposite side of the sanctuary from the one everyone went through. She is still about 20' away from the door and so she won't be able to see if she can open it until her next turn.

Rush is next!

“Die, monster!”

Rush casts toll the dead dc 13 10

 ((Which Jelly are you targeting with that?))

WIS save: 0

The bell tolls, the jelly vibrates with the revirbiration of the sound waves and in some places, its color changes to a gray, dead color.

Kwisatz is next!

((For now, I'm assuming Rush targeted Jelly #1 since that's the closest one.))

Here is the current map, for context and visualization. :)

I placed Sael where she would be after her last turn and uncovered the "S" door towards the southeast corner of the room. 

 Kwisatz will try another Chill Touch on the final jelly, thinking it interesting that Sael just came through another door...

Attack: 25 Damage: 2

((Just to be clear, there are currently two medium-sized jellies and Sael hasn't, yet come through that door. She's only discovered it.))

With your rolls, it definitely hits. We'll say that you target/hit Jelly #1 since that would be the closest one to Kwiz. (Unless you specifically want to hit the jelly behind it, then I'll attribute the 5 points of damage to that one, instead.)

With that, Andrømeda is next. 

Andrømeda growls, teeth bared, and swings her greataxe up from the floor in a golf swing from where it had struck the original jelly.

Attack: 19 Damage: 16

Andrømeda's golf swing obliterates the ochre jelly into jam. It's now a splotched stain on the temple walls with a clear path to the second jelly now open.

It's Jelly 2's turn (since Jelly 1 is dead):

Jelly  2 is going to attack Andrømeda with its pseudopod attack.

Attack: 21 Damage: 13 bludgeoning

The jelly sees it's other half, the being it used to be fused with, get smeared across the walls, and it lashes out with its one and only appendage in a purely instinctual fight or flight move. With Andrømeda's arms in the up position after she finished her up-swing, the jelly uses that moment of opportunity to strike Andrømeda in the throat. 

((I've added the damage to Andrømeda's character sheet, already.))

The dwarves would be next, and they're just going to retreat back to the sanctuary portion of the temple, trying to get back out of the way.

So, that brings us back to the top of the next round: Sael's turn.

Having spotted a possible button for a door on the other end of the room, Sael hurries over to try it and see if she can open it and at least make noise down the hall to distract the jellies ((not knowing one is already vanquished)).

Sael used 20' of movement (with 10' left), and uses a bonus action to press the button.

Another secret door opens with the grinding of stone gears behind the wall, and she had the rest of her movement and her actual action left if she wants to use it.

((She does!))

Sael moves in  [10'] and decides to attempt, at the very least, prodding it with her pole of extension, or else smacking it on the floor to draw its attention.  She mutters the command word "ygzylv" and tries to hit the back side of the jelly at the end of the corner of the hall.

8  ((Don't know if I should have added anything to it...strength?  And if it hits, I don't know what dice to use for damage.))

((I can't see what your roll included, but am improvised melee weapon would be your regular melee attack to hit, then it would deal 1d4+STR modifier for damage.))

((I figured out how to see what your roll consisted of. The 1d20 is fine since your character isn't proficient in the item as a weapon.))

An 8 hits the jelly, but just barely. Sael reaches her arm out as far as she possibly can as she's saying the command word to extend her pole of collapsing the full 10' it can extend. The pole slaps down towards the ground with a slap and a sploosh and Sael manages to do 3 bludgeoning damage.

Rush's turn, next!

Rush keeps up the assault, casting toll the dead DC13 6

WIS save: 2

Once again, this spectral bell tolls, the jelly revirberates with the tone, and a portion of it changes to a dead color.

The jelly takes full damage.

Kwisatz is up.

Hoping to finish it off, Kwisatz creates another icy hand to appear and reach out to the Jelly.

Attack: 8 Damage: 6  

Becoming more and more familiar with this spell as he's found himself in life-threatening situations more often than he ever expected to, Kwisatz becomes faster at sending out his icy spectral hand. Considering the tight quarters of the battle space, casting spells is somewhat more difficult and he doesn't hurt it as much as he was hoping. The icy hand reaches out and definitely makes contact, but the jelly seems to barely notice.

Andrømeda is up!

Andrømeda, dropping her greataxe for a moment from the quick throat shot the jelly took, snarls before snatching her two hand axes off her belt, taking two quick slashes at the monster.

Recovering from the jelly's previous hit, Andrømeda collects her senses and grabs her [Tooltip Not Found]. Still in a rage, she furiously slashes at the jelly, injuring it gravely with the first swing and then watching it collapse into a lifeless puddle after the second swing. 

The ochre jelly is dead. 

The last twelve seconds seemed to both last a lifetime, and end in the blink of an eye. With the jelly dead, there is a palpable silence. It's the kind of quiet that actually rings in your ears - or is that the sound of Andrømeda's handaxe hitting the ground reverberating off of the walls? Either way, as your nerves calm and the quiet settles back over you, the realization that you've been in this temple for a long time starts to set in.

You can hear footstep shuffling into the secret door behind where the large group entered. Dazlyn sheepishly asks, "Is it dead? Is everyone okay?"