Adrima, still flying, notices that Retoig was wrestling with someone and hears footsteps on the planks. Without hesitation, she aims for where she thinks is one of the enemy.

Eldritch Blast: 13 force damage : 9

"Me nuh like dis," Retiog says as they step up on the deck of the boat. "Too quiet," he sniffs at the air.... Being suddenly grabbed by some unseen foe definitely catches the orc by surprise. "Eeek," he exclaims with sound too high pitched for what one might think. "Wha' be dis trickery," asking as he manages to barely fight off his attacker. He jumps back as the warlock tries to blast at the sounds of the footsteps. "Me reeeealy nuh like dis... Out wit joo, scaleewag!"

Cannons searches frantically around for someone to blow up. Perception 12 if needed. If I can still attack after the check, I'll throw a sizzle-boom at any foe he finds (6 dmg)

(OOC - sorry for the recent inactivity. I'll likely be able to post again on Monday)

OOC: Still invisible.

Adrima's blast hits the deck and does nothing.  Cannons can't find anyone to blow up. 

OOC: Do I know which direction the creaking is coming from relative to me?

OOC: Will you allow me to create some flour from my bag of spices?

OOC: Ooo! Clever!

OOC: Xyran, roll Perception.  Retoig, yes, but it will take 5 charges instead of one. 

Retiog puts his hand to a purple and silver pouch at his waist and whispers, "Lotsa flour...and peppa, peppa peppa." (Spends other three charges) He reaches in and pulls out a hand full of of the white powdery baking ingredient with little black flacks of pepper mixed in. Readying to throw it, he nods to Xyran, "Lemme know if'n joo hear sumpting."

Driss will move near Retiog does try to hear and find the hidden foes ( perception  ) and cast thunderwave in the direction of the stern, taking care not to hit him of course.

Occ: I m targetting the largest part of the deck and the quarterdecks. Could you roll skill +5 and damage please because my phone is acting up. 

[skill]perception[/perception]: 5

 OOC: Damn

Xyran, after trying real hard to figure out which direction the creaks are coming from says, "Bloody ship and sea and creaking I can't make heads or tails of where they be comin' from."

Polly, now knowing there is something on deck, focuses into the vampire’s psyche. He whispers, “What? Just cause you’re see-through, you think I can’t touch you? Music rises and falls, like a heartbeat. Sound is alive and sees all, penetrates all. You can’t run. You can’t hide. You wanna know why? Cause... you... suck!” Polly casts Dissonant Whispers for 16 psychic damage. DC 13 Wis Save.

OOC: Gotta be consistent!

Wis save: 15

Driss' Perception: 25

OOC: Well, then. 

Driss hears the vampire's footsteps over the crashing of the waves, the creaking of the ship, and the sounds of battle.  He's circling you. 

Grifhook yells, "I knew it! Damn blood bags and their tricks." as he begins to listen carefully for any movement aboard the ship.

Wisdom (Perception) check: 6

OOC: Well, that's not going to do it.

"Sneaky buggers! You want to play hide and go seek? Then let me introduce you to my not so little friend." Grifhook aims his cannon to hit right next to where Retiog is standing. "Marco!"

Ranged Attack: 20

OOC: Does that hit anything? If so, I'll roll damage. Also, I'll aim so I don't hit any of the party if they would otherwise be hit.

As Xyran is not seeming to get a bead on the invisible foe, Retiog turn his attention to Driss. "Whacha got dere, Driz?"

Arcturis kneels carefully placing a hand on the deck of the ship. "Its good to be back on familiar ground." Trying to get a sense of the ship, a large on like this can sometimes be tricky, he looks around the deck and follows the reactions of others trying to get a general location of where the assailant may be.

When he has a pretty good idea he looks up to the sails and calls upon the ship to help him. 

[ooc]Id like to try to use Control Rigging to possibly drop a sail down over the general location of where I believe the invisible creature to be. Hoping to cast a wide enough net that it will land ontop of him showing us its location.

24  for the DC 15 check

OOC: Good idea with the sail. Thought about doing it myself but I figured it take too long using my other weapons. But with that cantrip, it's much more doable.

"They are circling us" Driss shouts, pointing.. 

OOC. Even with save they still get damage. I m hoping it shows and with perception so high can I target them better?

OOC: Using Driss to guide me I'd like to toss the flour out there. What kinda roll do I need on that?

Arcturis tries to drop a sail on the invisible vampire, but all of a sudden he can't quite remember how the spell goes. 

Driss, thunderwave is centered on the caster. 

Retoig, roll Dex + proficiency, with disadvantage because your target is invisible. 

Grifhook, two things.  First, you forgot to roll with disadvantage.  Second, it's a miss either way.