Antabolis Informant Antabolis Informant is the second quest in the main questline of , after Report to Caius Cosades . Background . Caius Cosades will ask the Nerevarine to visit Hasphat Antabolis in the Fighters Guild in Balmora , to learn what he knows about the Sixth House . Hasphat asks for an ancient artifact to be retrieved from a Dwemer Ruin and delivered to him before sharing the information . Walkthrough . Hasphat Antabolis . Hasphat will confirm that he does indeed have information for Caius . However , he wants something in return : A Dwemer Puzzle Box . He then explains that one can be found in Arkngthand , northeast of Moonmoth Legion Fort . The Nerevarine will journey on foot to the ancient citadel , with the help of Hasphat ' s instructions . Following the road to Molag Mar until a fork at the foot of hill , then taking the path that goes up that hill . Then , a little further , the ancient city of Arkngthand can be seen beyond a bridge that spans over the Foyada Mamaea . A bandit , Snowy Granius , is guarding the bridge . Arkngthand . After dealing with the bandit and a few Cliff Racer s , across the bridge , there is a little serpentine path going up . It leads around the scattered ruined towers of the citadel , to the main entrance . The doorway is hidden behind a round stone . Once the Nerevarine activates a handle on a pipe not far from the door , as indicated by Hasphat , the stone will reveal the entrance . It leads directly into a large cavern , called Hall of Centrifuge , one of the maze - like sublocations of the ruins . From the entrance , some stairs followed by a stone ledge lead all the way down , where Frink Ruuz is guarding three large doors . Above these doors there is another ledge , which can be accessed by a ramp on the side . On this ledge , another door , hidden on the side , opens into the Cells of Hollow Hand . Inside Boss Crito is patrolling . It is within this small cell that the Dwemer box can be found . It is located on the lower shelf on the southern side of the room , there are many crates , around the room , filled with low level loot . After dispatching the hostile bandits , the Nerevarine will acquire the Dwemer Puzzle Box and may choose to leave and return , or delve further into the citadel . This can be done , either through one of the three doors into the Weepingbell Hall , on the west side of the Hall of Centrifuge or on the east side , a little further back up the rocky ledge , into the other Cell of Hollow Hand . Each room and each corridor is patrolled by bandits , Dwemer Animunculi and Dwarven Spectre s . Return to Hasphat Antabolis . Once back in the Fighters Guild , in Balmora , the Nerevarine will return the Puzzle Box to Hasphat . He will keep his promise and offer " Hasphat ' s Notes for Cosades " ( Which can be read with no penalty ) . It is now possible to return to Caius Cosades with the note for the completion of the quest , and receive the reward . Optional : Delving deeper into Arkngthand . If the Nerevarine did not have a high enough lockpicking skill during the visit to Arkngthand , it is possible , after completion of this quest , to return and speak to Hasphat about the Puzzle Box . He will reveal to the Nerevarine that it was , in fact , a plan for a Key , which he will offer . The Key can be used to open the doors that can be found further within the citadel , to encounter higher level enemies and find valuable loot .