Joost was stationed near Councilman Hoede's house after the assassination of the Zemeni trade ambassador. On his first day guarding the house, the Grisha indenture Anya healed a bruise on Joost's cheek; he became infatuated with her. He knew it would be impossible to form a relationship with an indentured servant, but he still brought Anya gifts.
Six of Crows
While on duty, Joost tries to think of ways to compliment Anya. Two of Hoede's personal guards, Henk and Rutger, tease Joost about his moustache and his crush on Anya. Looking for Anya, Joost talks to Emil Retvenko, one of Hoede's other indentured Grisha. Joost admonishes Retvenko for leaving the door to the workshop open, but Retvenko ignores his request. He teases Joost about his uniform and his crush on Anya. Retvenko then asks after Yuri, Hoede's third indentured Grisha, who has been missing. Retvenko tells Joost that Anya has been taken by Hoede, just like Yuri was, and that when Yuri returned, he was sick. Two days later Yuri vanished, and Retvenko suspects he is next. Retvenko tells Joost to leave and uses his Squaller power to send a gust of wind at Joost, forcing him out.
Two of Hoede's personal guards tell Joost he is required at the boathouse. Upon arriving, Joost sees Hoede, Jan Van Eck, Henrik Dahlman (the captain of the stadwatch), and other guards. Anya is there as well, inside a huge box that resembles a freestanding cell, with a young boy. Joost and the other guards watch as Hoede has one of the guards enter the cell, cut the boy's arm, and has Anya heal it. Joost then watches as Anya is made to take jurda parem and observes how the drug changes her. The guard again cuts the boy's arm and has Anya heal him. Joost wants to stop what is happening but he also wants to keep his job, so he does nothing. Anya uses her parem-enhanced Corporalki abilities to control the guards' minds and make them help her escape the cell. She tells all the guards to "wait" when they try to stop her. This results in the guards, including Joost, going into a trance-like state until they die, waiting expectantly for Anya's next instructions that will never come.
When Jan Van Eck takes Kaz Brekker to Hoede's boathouse, they discover that Joost has died.
Personality and traits
Joost is insecure about his youthful appearance and his lack of experience. He fantasizes about being promoted within the stadwatch and wants more excitement in his job. Joost is not courageous, and values keeping his employment above standing up for himself or others.
Joost has a baby-looking face and wishes he could grow a mustache. As a member of the stadwatch, he wears a purple uniform and carries a rifle and weighted baton.
|Main Characters||Kaz Brekker • Inej Ghafa • Jesper Fahey • Nina Zenik • Matthias Helvar • Wylan Van Eck • Kuwei Yul-Bo • Jan Van Eck • Pekka Rollins|
|Minor Characters||Joost • Anya • Emil Retvenko • Councilman Hoede • Geels • Bo Yul-Bayur • Per Haskell • Tante Heleen • Jordie Rietveld • Specht • Rotty • Jarl Brum • Cornelis Smeet • Adem Bajan • Colm Fahey • Aditi Hilli • Alys Van Eck • Marya Hendriks • Zoya Nazyalensky • Sturmhond • Genya Safin • Dunyasha Lazareva • Anika • Pim • Keeg • Roeder • Karl Dryden • Jellen Radmakker|
|Locations||Ketterdam • The Barrel • Hellgate • Ice Court • Djerholm • Black Veil Island • Kerch • Fjerda • Ravka • Novyi Zem • Shu Han • Wandering Isle|
|Groups||The Dregs • Dime Lions • Black Tips • Stadwatch • Grisha • Drüskelle • The Menagerie • House of the White Rose • Merchant Council • Council of Tides • Khergud Soldiers|
|Events||Hringkälla • Hellshow • Queen's Lady Plague • Komedie Brute|
|Miscellaneous||Jurda • Jurda parem • Kefta • Indenture • Djel • Ghezen|