Velon and Poljen start whacking on the construct as Lia heals the others and Lawrance releases a seemingly endless stream of force bolts at the thing. Silas pulls out his own greatsword and joins the fray as well, striking hard at one of the limbs holding Cratol.

Another beam lashes out, at Velon, scorching him with lightning. and then the retriever fades out of sight, reappearing on the far side of Silas' force wall, with Cratol still in its jaws. It starts scuttling down the passage away from the group.

Silas curses in draconic before declaring, "The damn thing can teleport! I can stop it from doing that again , but we'll need another barrier."

Lawrance hears Silas and 'paths to Silas #I'll take care of the barrier against it moving further! Anyone want to come along for the ride?# When Lia offers to come along, he steps close enough to encompass her in the spell. He waits for a second to see what the creature does, then disappears and reappears dozens of feet closer on the bad side of where Silas' Wall of Force was. Drawing upon his highest powers of magic, he readies to cast his own Wall again, dropping the now useless overhead one.

OOC -Lawrance Holds his action until the retriever's Init, thenDimension Door  at least 120' forward - further if the creature moves another 50', so that he ends up 70'-ish away- and readies to cast Wall of Force  on 15, in front of the retriever and it's prey (up to 120', but just enough in front to stop it.)

OOC:  This is predicated on the assumption that Silas can get the wall dropped prior to Poljen's turn.  If not, Poljen will move as far up as the wall allows, then Hold a Dash for further movement once the wall is down.  If his movement is not impeded, he can move 40 then Bonus Dash for another 40, which seems to be the exact distance the creature moved.  Teleport 30, scuttle 50.

IC:

The barbarian howls in frustration as the creature vanishes from in front of him, only to appear further off and begin darting away on its spindly legs.  He charges after it, feeling the inspiration of his spirit animal granting him extra speed, closing on it so he can attack once more

  Lia gestures towards her friends and a bright light flashes.  " Thank you Sune, " she murmurs as her goddess heals her friends yet again. 

OOC: She cast cure wounds level 3 and using her bracelet  everyone within 30 feet receive the healing including the enemy.  Velon, Poljen and Cratol each receive 16 hitpoints and so does the creature if it is within 30 feet.  She will wait to cast it after traveling with Lawrance if necessary. If she is unable to be within 30 feet of her friends then please let me know and i will edit my post.  

Velon too groans in frustration but listens to Silas and Lawrance.  He begins lumbering down the tunnel in pursuit of the construct and pulls out his still unfamiliar wand.  He casts Magic Missile from the wand to try to at least help the cause some until he can catch up.

Fearing the construct is spreading the party out too far Velon thinks aloud over the mental link "let's not get caught too far apart."  "Mari, bring our guide up in the rear so you don't get left behind or ambushed!"

Move 30ft

Damage @3rd level: 19

  Mari hears Velon and answers, " Okay Velon.  We will move closer.  " She looks at their guide with blades down by her side.  " Let's move up closer to them.  No point in getting attacked back here by ourselves.  " 

Addendum - Lawrance has both Shield (as a spell in mind) and Absorb Elements (from the Ring) available as reactions. If the creature attacks him with something that could be deflected by the +5 AC, Shield will trigger. If Absorb Elements is more applicable, that will be used. I doubt this thing is firing spells, per se, but if there is a spell that needs Countering, he can do that, as well. 

Silas waves his wall away and points his finger at the retreating retriever. A thin green ray shoots out, striking the construct. The whole thing flares green for a brief moment. Meanwhile the Blaze charges forward, trying to keep up with the fast moving thing. Still caught in its jaws, Cratol is struck by a ray of fire as it keeps moving.

More than a little nervous at how far from the party Lawrance has ended up, and very glad at Lia's presence and magic at his side, he summons another Wall of Force against the retreating construct, stopping the tunnel up with the invisible barrier. 

Poljen once again just focuses on staying close to the thing, and hitting it hard.

  Lia watches anxiously as the construct nears them. She keeps the words of healing ready on her lips   

Mari eyes her guide suspiciously as she expects him to do something unwise.  

Trusting in Silas, Lawrance and perhaps Lia to lock down the retreating contruct, Velon keeps lumbering along trying to catch up.  He decided to test new magic he had been learning to manipulate and fires a ray of cold at the creature hoping to slow it down a bit.

Ray of Frost attack: 20

Damage: 14 cold, slow 10ft on hit

Cratol continues to try and break free of the creature but still is not able to.

Rolled a 4 so with Athletics that is only a 9

Those able to keep attacking the creature do so while Lawrance blocks off the tunnel with another wall of force. The retriever shifts to the side and starts clambering up the wall to get away from Poljen and the oncoming Velon, but then Silas is upon it.

Rapidly shifting form, Silas changes into a strange dark blue snakelike creature with a dozen legs. Charging up the tunnel, he rapidly grabs hold of the construct, pinning most of its limbs in place and pulling against two of the arms gripping Cratol. Silas gets hit with a frost ray in response, the creature tries to slice him open as well, but the claw skids off of his scales.

 Poljen once more does one of the two things he does best, and keeps attacking.

 Cratol still attempts to escape from this creature if he escapes he will immediately attack it.

Not sure if he has advantage while attacking but will roll as such

Athletics check with advantage rolled a 13/19 so that is 18/24

Attacks with advantage. 15/7,. 19/6,. 2/20, 6/5 so that means 26/18,. 30/17,. 13/31, 17/16

Damage if hit:. 10, 14, 18, 8

Sustaining the Wall against the creature's escape, Lawrance begins firing the familiar bright bolts of energy into the creature , making sure to avoid hitting Silas or Carotl. Ready with his Arcane Ward in case of retaliation, his firebolt lances out from a healthy distance. Looking a bit obviously out of place in the underground, Gamliel in his owl form runs flybys against the construct, aiding Cratol's struggles. (Help Action for Cratol) 

Attack: 19 Damage: 20

Lia nocks an arrow and takes careful aim before releasing it. It is covered with a white light as it rockets towards the construct. 

Mari keeps an eye on the battle but pays more attention to her charge.  

Lia bowshot: 11

Damage: 11

Velon finally catches up with the construct and attempts to land some heavy blows before it can escape again, potentially taking Cratol with it.

Attack 1 w/ Adv: 27   Damage: 15   Fire Crystal Damage: 1

Attack 2 w/ Adv: 23   Damage: 13   Fire Crystal Damage: 2

Edit: *Oh and Shield reaction for any incoming damage from an attack roll if Velon would perceive such damage to be a large blow (25HP or higher).

Cratol manages to slip free, and joins in with Poljen and Velon, each of them scoring hits on the metallic creature. Lawrance's firebolt scores a hit, though Lia's arrow misses.

The retriever continues to thrash in Silas's grip, managing to score several gashes in his hide. A bolt of lightning streaks out, hitting Poljen in the chest.