Onyx unwraps the lantern and once he made sure that it is the right object and not some kind of fake, he will take a close look at the cloak that was used to wrap it up.

The captain calls some other guards over, giving them new orders who proceed to set off in different direction, some pull out copper wires and whisper them into. 

Onyx inspects the lantern for while ignoring everything else before looking at the cloak around the lantern, quick to determine it was merely a thick leather cover that could block the light from the lantern. 

Assuming Robin is just standing there as she look through the eyes of assumed familiar owl. The owl sees people running from the forge building after opening it as a large shadow come out. The guards engaging it in battle for a few seconds before the large shadow fell. 

Robin is not looking through her owl's eyes. She is just having the owl report back in on what it sees.

"So, it sounds like the guards just took out a shadowy thing near the entrance to the building." She comments, glancing in the direction the owl reported that to have happened in. "Other than that there is no sign of the fleeing one."

Ater relay orders and information, The guard captain looks around at the party as the guard form a perimeter around them as food and water are handed to them and one of the spellcaster whispers something to the captain, "I've informed everyone to be lookout of Firblog instead of Goliath with illusion procedurals intact. The forge had big boy hiding it but we're dispatched it. . . .," He looks around before his voice become a low whisper, "Please tell me you got your god item,"

„That part was successful,  but he got away. How was he able to destroy the whole building? Did he had some backup near by?“

Onyx looks around if anyone is watching them from afar. (Perception 16)

"We do not believe so. The people who saw it says . . .the ghostly cannonballs manifest in mid-air in mid-flight before bombarding the building," The captain recalls, "Good or bad news, we may have an ID on the person but once against description doesn't seem to match but may have been a ruse to start with. Don't quote me but we may be dealing with 'Skull Face' Lanoth. He was a pirate captain before the Sisterhood or Umberlee Armanda arrived in the Valley's seas. Said to command a phantom ship called Deadly Daughter. We had them written as dead as he didn't bend the knee to the Armanda but once again this is speculation which tonight has been biting us in the arse,"

Onyx keeps an eye out and finds no one too strange watching, the perimeter guards' heads are spinning around looking and watching. 

"I'd say it is safe to say this person, whomever it actually is, has gotten away." Robin comments as she holds her injured arm close to her side. She glances to Onyx. "Do you want to do a search, on the off chance we can turn him up, or do you think we should let it be. It seems they were after you, so it is likely they will return, at some point, for your lantern again."

Onyx looks around, at his injured comrades, the destroyed building and the guards. „How would  you do it?“ He asks no one in particular. „ A high level wizard can create that kind of destruction. Maybe an invisible flying cloudcastle? But if he got those resources, why run, why not stay and fight? I would guess he created those blasts at a base of operations away from here and used some kind of teleportation to get them here…“ Onyx pauses and thinks for a moment.

Resfaen is breathing heavily either due to the combat, being buried or more than likely because her quarry escaped. Either way, her breath lessons when she notices Robin's injured arm. She reaches out a hand and touches Robins shoulder as it glows golden, "That should help a little bit." And with her hand still glowing she touches her chest as the golden light fades.

20 HP healing to Robin and myself.

Salys continues to focus on his spell for the remainder, hoping the owl will hear something.

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 Onyx and Robin discuses how the firblog did what he did but it's merely speculation while Resfaen heals herself and an distracted Robin. Salys focuses on trying to burn his unseen enemies until the time of the spells and leaving him in the dark about what could be happening. The owl doesn't report much more on it's flight. Rogi remains sitting against some debris, catching his breath after being pulled out of the building. After an hour, the captain walks up, "As much as I don't like but he got away for now. We've sent word to increase city perimeter security and we'll be escort you home or a safehouse if you wish,"

Salys shakes his head, “Just somewhere near the garrison, I think. We can move our residence there for safety.”

"Seems like a good idea." Robin confirms.

The group moves with caution and alertness before leaving the miner part of town and closer to the center where the Garrison would leave. (Up to you if you want to be in Garrsion or move Residence here). In the morning, a scholarly tiefling individual gathers everyone a rather thicked stone wall room in the Garrison. The room has strudy round oak table in the middle with several strudy chairs.

"Hello, I am Julius. I'm on official business to determine the events that occur last night," Julius explain as he sits down then places a black stone in the middle of the table and points it before it starts to glow and emits a hum, "This will block out any sounds from leaving this room. I believe you do not know the importance of the lantern you have. There are several theories on escape method and the lantern or rather artifacts with connection to being greater than us is one believed method.  The Greta Library call it the God Carriage Theory," He pulls out a sheet of paper and draws a circle.

"This is the valley, things can come in and so far nothing's getting out," He explains as he draws arrows going into the circle and other lines from inside that bounce off the circle, "This includes weaken patrons, your artifact seem to be akin to a hexblade patron by the way, demi gods and even some dead gods. Dead being relative term for gods. Some people come up with idea to escape is to punch through the barriers of the valley with a lot of power. Power you can find in higher beings. Some attempt worship to build these gods back up to strength resulting in several cults. Another method is available due to the Platinum Artist, who likes to turn dead gods into artifacts and those artifacts are thrown into her collections," He draws a thicker arrow going though the circle.

Image: 

 "While the Great Library and Legion do not subscribe to this theory, it has created a death match for these artifacts. Even if they can't be used to escape, they are still very powerful items. Any item with connection to a god is a target on you," Julius explains, "I'm telling you this as a warning and put you on guard. Even if you get rid of the lantern, people will try to kill you because they can not believe you would let it go. I know this is a bit much but from my understand the Legion likes to think you and them have a good relationship and they don't want to go to waste. Any questions?,"

OCC: Tomorrow I'll be somewhat distracted due to real life, will be mostly on my phone so I won't be posting long paragraphs but I'll try to give answers as best as I can but I may add on more information when I have access to a keyboard. 

 „I have a few questions.“ Onyx replies. „ It is my understanding, that this set contains three items. Each has a part of the same demon inside. So that theory said that once  the demon captures enough souls it will be strong enough to break out of this dimension. But would it need all three items or could one be charged on its own to a point where the wereabout of the other two won’t matter?“

"The theory is based on power. Most sets share the same power base so your item holds 1/3 of the patron's current power. A patron is very low on the power scale of higher beings so I doubt it's ability to draw power from capture souls is limitless, most likely continued use would burn out the souls, so gathering all three of the set would be important to have 100% of the patron's power," Julius explains.

Salys would have moved the residence to near the garrison, right across from it or something. Also, at some point, he would look into purchasing or creating a stronger door. Perhaps a forged iron door enchanted in some fashion.

"I must explain  but I can not install a new doorway to the Residence. The door material is based on the surface you create the door," the servant explains, "if you wish to use a special door, when you move the residence it will remains where it is,"

Quote from Shodai_Kishi >>

"I must explain  but I can not install a new doorway to the Residence. The door material is based on the surface you create the door," the servant explains, "if you wish to use a special door, when you move the residence it will remains where it is,"

 (So the guy cut through a stone door? Because we set it up against a wall, presumably stone, and its based on where its set up. And we previously installed a lock on the door with no issue, so why not a door?)

OCC:

The lock and structure (perimeter frame, enforcement metals, shape) of the door can be altered to certain limits of dimensions,  but the material of the door is dependent on the surface used to create the study door. 

"Like the lobby, the Door is a essential and set element of the Residence as whole. There will be this general door and there will be this lobby. That is the constants of the Residence I must say. If you wish to discuss the reasons I must direct your question to the creator Leomund. The Residence is bound to the rules and conditions set by the creator. The Residence, to to be a bit vain, is a marvel of one of his great spell in conjunction with Mordenkaien's extra-dimensional teachings" The servant explains with a hint of pride, "The lock, frame and reinforcements can altered as you've done with the lock. The metal strips can be thicker or widen only marginally in respect to the size of the door. The frame can be alter to be round, square or odds shape as long as the Residence can will recognize it as it's door,"