Mission to Sibensko In 28 ABY , the New Republic Senator Leia Organa and her senatorial staff embarked on a secret mission to the Expansion Region planet of Sibensko . Posing as smuggler s , Leia ' s team managed to infiltrate the under water Sibensko city . While Greer Sonnel and Joph Seastriker loaded a shipment of thermal detonator s , Leia and C - 3PO managed to download banking records linking the Amaxine warriors to Rinnrivin Di ' s cartel . After sending C - 3PO back to Greer and Joph ' s junker , Leia decided to spy on the Amaxine base . Shortly later , Leia was cornered by Rinnrivin Di himself but managed to kill him and his henchmen by collapsing a hydraulic tunnel on them . She infiltrate the Amaxine base only to be pursued by several Amaxines . Leia fled up a landing platform where she was rescued by her husband Han Solo , who had arrived in a modified racer . Together , the couple shot down two Amaxine starfighter s . One of these crashed into the ammunition depot , destroying the underwater city and the Amaxine base . This skirmish effectively eliminated Rinnrivin Di ' s cartel and the Amaxine warriors as reliable First Order proxy agent s . Prelude . Background . Following the Battle of Jakku , the New Republic signed the Galactic Concordance with the defeated remnants of the Galactic Empire , which ended the Galactic Civil War . Several Imperial loyalists retreated to the Unknown Regions where they formed a military junta called the First Order . Seven years before the Amaxine warrior crisis , the First Order began funnelling funds into a pro - Imperial militia called the Amaxine warriors , which was led by former Imperial officer s like Arliz Hadrassian . The First Order channeled these funds through the auspices of several Centrist senator s in the New Republic ' s Galactic Senate including Lady Carise Sindian . To hide these transactions , the Centrists invested their money into a criminal front organization led by the Nikto crime lord Rinnrivin Di . Rinnrivin ' s cartel ' s activities eventually attracted the attention of Senators Leia Organa and Ransolm Casterfo . Over the course of their investigation , they discovered that Rinnrivin ' s cartel was colluding with the Amaxines . On Ryloth , Leia and her senatorial team discovered evidence about Rinnrivin ' s rapid rise to power under suspicious circumstances . After slicing into his spy satellite s , C - 3PO and Leia ' s starfighter pilot escort Joph Seastriker discovered that Rinnrivin was hiding on Sibensko , which had a reputation as a crime haven . Meanwhile , Casterfo and Leia ' s chief of staff Greer Sonnel traveled to Daxam IV under the pretext of buying an Emperor ' s Royal Guard helmet from a local collector . This collector turned out to be Hadrassian , who showed Casterfo the Amaxine Warriors ' encampment on Daxam IV . In addition , Hadrassian revealed that the Amaxines ' main base was on Sibensko . Sonnel ' s reconnaissance flight revealed that the Amaxines were a large and well - equipped militia that fielded thousands of personnel and starfighters . Returning to the New Republic capital Hosnian Prime , Leia , Casterfo and their team made preparations to travel to Sibensko . Preparations . However , Leia and Casterfo ' s plans were complicated by the upcoming nomination for First Senator , a proposed office that would wield considerable power over the Republic ' s economy and military . As a prominent member of the Populist faction , Leia was nominated by her party as First Senator . Seeking to drive a wedge between Leia and Casterfo , Lady Carise leaked information about Leia ' s parent age as the daughter of the reviled Darth Vader to Casterfo . This created a political scandal which destroyed Leia ' s political career and strained her friendship with Casterfo . Despite the crisis , Organa was still determined to continue her investigation into Rinnrivin ' s cartel and the Amaxines . After withdrawing her nomination for First Senator , Leia obtained leave from the Senate . Her pilots Greer and Joph also obtained a job to deliver an unspecified shipment that had arrived in Sibensko from Daxam IV . For the mission , Leia and her team purchased a junker in order to disguise themselves as smugglers . Greer and Joph disguised themselves as a Mandalorian warrior and Ubese bounty hunter while Leia and C - 3PO pretended to be an indentured servant and minder respectively . Having made the necessary preparations , the four traveled to Sibensko . The mission . Leia and her team ' s destination was an underwater city that lay beneath the planet ' s seas . This city was only accessible through a series of mechanized landing platforms that were fitted with Force fields to keep out the water . Upon landing , Joph and Greer were greeted by an Amaxine warrior named Padric , who informed them that they would be delivering a shipment of thermal detonator s to contacts on Hosnian Prime . Meanwhile , Leia and C - 3PO took the opportunity to explore the city . Leia also managed to use a tracker to discover that Rinnrivin was on Sibesko . Earlier , she had planted a tracking device on a holocube she had returned to the crime lord on Harloff Minor . Leia and Threepio visited a local cantina and managed to access the Sibensko computer core through a local computer . Due to the weak security measures , Threepio managed to download banking records which tied Rinnrivin ' s cartel to the Amaxine warriors . The Amaxines were investing considerable funds into Rinnrivin ' s cartel , which channeled their profits to unidentified sources in several Centrist worlds . Leia also discovered that the Amaxines maintained their headquarters in the same Sibensko city . After ordering C - 3PO to return with Joph and Greer , Organa decided to spy on the Amaxine headquarters . However , she was soon cornered by Rinnrivin and two bodyguard s . Following a verbal confrontation , Leia shot one of Rinnrivin ' s bodyguards . She then used a blaster to dislodge a bolt holding a hydraulic tunnel , which crushed the crime lord and his remaining bodyguard to death . Keeping in touch with her team via comlink , Leia traveled to the Amaxine base . She managed to enter the base where she discovered that the Amaxines had assembled a fleet of starfighters including X - wings , TIE fighters , Y - wings , and B - wings . Leia was soon cornered by six Amaxine Warriors but managed to escape up a landing platform . Leia activated the force field controls and allowed the platform to climb to the surface . In response , the Amaxines dispatched a Y - wing and B - wing to eliminate the New Republic intruder . Before the Y - wing could take her out , Leia ' s husband Han Solo arrived on a modified racer and shot down the starfighter . Solo then flew the racer towards Leia , who climbed aboard the ship . The couple then exchanged fire with the B - wing starfighter and Han shot it down . In response , the Amaxines dispatched more starfighters to eliminate the intruders . During the dogfight , Leia managed to shoot down one of the new fighters , which crashed into the sea and collided with the Amaxine base ' s arms depot . This triggered a massive explosion which wiped out the underwater city and everyone in it . Aftermath . Despite destroying the Amaxine Warriors as a military threat , Leia was dismayed that they had lost much of the hard evidence except the information stored in C - 3PO ' s data banks . After returning to Hosnian Prime , Leia announced her intention to address the Galactic Senate on her investigation into the Amaxines and Rinnrivin ' s cartel . With the support of her former friend Casterfo and the Populists , Leia gained the necessary quorum . During her last speech , Leia informed the Senate that Rinnrivin ' s cartel and the Amaxines were linked and presented the banking records that C - 3PO had downloaded as evidence . Despite the destruction of the two factions , Leia warned that other threats to the New Republic still existed . Due to the recent scandal around Leia ' s father , several senators did not believe her with one accusing her of being a warmonger . To Leia ' s surprise , Casterfo spoke up in her defense and presented visual logs from his undercover mission to Daxam IV . He reassured the Senate that Leia was telling truth and warned that the Amaxines admired the Old Empire and sought to overthrow the Republic . While Casterfo ' s actions won him Leia ' s respect , he angered his nominal ally Lady Carise Sindian , who decided to eliminate him . Lady Carise ordered Hadrassian to assassinate the Populist senator Tai - Lin Garr , the new Populist candidate for First Senator . She then fabricated evidence linking Casterfo to Hadrassian . As a result , Hadrassian was deported to his homeworld of Riosa to face trial for aiding Hadrassian and therefore being complicit in the Napkin Bombing , the Amaxines , and Rinnrivin ' s cartel . In retaliation , Leia convinced the Elder Houses to strip Carise of all her royal titles . Disillusioned with the infighting and inaction of the Galactic Senate , Leia resigned as Senator and formed a paramilitary outfit called the Resistance to protect the New Republic . Behind the scenes . The Mission to Sibensko first appeared in Claudia Gray ' s 2016 novel " Bloodline " . Most of its events were told from the point of view of Princess Leia , the main protagonist of the novel .