Renaer says "I've rad his book, but not personally." The orc kenku opens it's mouth and in a voice that sounds like the one of an orc it says "Xanathar". 

Flynt cocks an eyebrow. "The Xanathar? They must be behind this." 

Bobin takes Flynt apart and whispers to him: “don’t you find it strange that we were send on this mission by Volo to find Floon. Now we find this Renaer who says he’s a friend of Floon. He has no idea who Volo is. Makes you think we are hired by xanathar perhaps. What do we actually know about this Volo?”

Flynt shrugs. "We know he's an author. If Volo were a part of the Xanathar's Guild, he wouldn't be able to keep it secret. He'd probably write a book that says 'Volo's Guide to the Xanathar's Guild.'" He turns to Reanar. "Are you able to travel. Perhaps you could help us find Floon, or you could return to the Yawning Portal." 

"I would gladly help find Floon!' Ranear says as he picks up a scimitar from one of the fallen kenku.

Bobin jells  "Are you saying I'm a fool Flynt, seeing ghost perhaps? or are you just in it for the money and willing to hand over Floon for some coin?"

Then he runs over to Renaer as fast as his little legs are able to carry him. "Sir I may be new in town and not aware of intriges but this you have to know and judge yourself before you say anything else. My "friend" the dragonborn over there and myself were hired by a Mr. Volo whom I never met before. He offered us money to..........etc"

Bobin tells him the whole story of how they grouped up and finally got to this building searching for him.

"... and  since you don't know this Mr Volo, who says he is a friend of Floon I lost track of who to believe and who not to. I still think, listening to you it would be a good thing to search for this Mr. Floon and I pray to the gods you know a bit more about it. But I don't know if this Volo is trustworthy and, once we find him bring him to Floon."

Then Bobin sits down, tired. Mumbling to himself about learning a profession and how this was not how he'd imagined it would be.

Flynt raises an eyebrow. "Didn't you want him to teach you a spell? Look, we'll find Floon and then we'll take him back to Volo. If things go south, we can dispatch of Volo. Floon will still be safe."

“Ofcoarse I want that flynt” Bobin sighs. “I want to be the baddest gnome wizard to have ever lived and proof my father wrong. But if that means I’m selling my soul and the life of this Floon guy as well it doesn’t feel good. One spell, no.... a whole spellbook wouldn’t even be enough for that. It wouldn’t feel right.”

“Getting floon free would feel good, yes. Let’s just do that and see where it brings us.” 
To Renaer: “do you know anything, where he could be or who’s after him and would you want to help us perhaps?

”Let’s hear what these creatures (kenku) know more. They couldn’t just be waiting here until we were going to crash in. Maybe I could set some toes afire to loosen their tongs”. Bobin says with a slightly evil grin.

Bobin walks over to one of the kenku and whispers a message (spell) to him: "tell me where to find the other guy and I'll let you live." 

In the mean time I search his pockets for clues. 

Flynt is going to walk over to the door to see if anyone is approaching the building.

The kenku, responds in a nasally voice, "Follow the yellow signs in the sewers,"

As Flynt looks out of the warehouse, you see at least a dozen city guards approaching the warehouse.

"Well, we have guards coming our way," Flynt says, moving closer to the middle of the room. 

Bobin opens the door and bows graciously for the guards approaching the door. "Hello kind Sirs. You are right in time. We have found Mr. Renaer, a prominent nobleman of Neverwinter who has been caputered by the Xanathar crime syndicate. We have found him here but we are not able to offer him a safe passage to his manor. I am sure he'll be gratefull for your service. We also offer these creatures that we have tied up. (pointing at the kenku). They kept him prisoner here and may have a thing or two to say. I myself am Bobin, gnome adventurer and I came here with Mr. Flynt, the tall dragonlike creature who has been very helpfull in capuring these creatures".

Then Bobin steps away from the door to make space for the guards to pass

The guards pass seeming to give Bobin the stink eye as they pass. They enter the warehouse and two members of the watch stand guard.

Flynt waits for them to ask him questions. If they stand there. He turns to Raenar and says," I suppose we go down the sewers to find Floon." 

Bobin checks for the guard with the highest rank and walks to him. "Sir, do you need our presence for anything or are we free to go? We have had quite a stressfull day and would like to have a nice rest."

At the same time Bobin points towards Flynt and whispers (spell): "don't give them to much details, just tell them we want to go".

"You can go>" The guard says.

Bobin walks out the door waving at Flynt and Renaer to come too. Without wanting to give the guards the impression that he wants to get out of the warehouse as quickly as possible he hurries out onto the street.

There he waits for the others and asks Renaer: "are you joining us in the search for Floon?" And to both he says: " resting a bit for an hour would probably let me cast a spell again, if needed."

Renaer replies, "I will follow, but be weary, guard in Waterdeep have no tolerance for heroes working outside the law."

"if Flynt agrees we could first find a bar to rest a bit. Maybe drink a beer. Mr. Renaer can tell us a bit more of what happened."

(Any bars we see?)