Kill Joy, , HarperCollins Publishers, Holly Jackson,Children’s / Teenage fiction: Family and home stories,Children’s / Teenage fiction and true stories, companion novel;thriller;prequel;friends;siblings;murder mystery;party;clues;solve;puzzle;character led;1920s;flappers;cliques;alibis;friendship;school;project;gang;games;crimes;murder;tiktok;novella;short story;Isaac’s booklist heatstopper;tiktok made me buy it,, , United Kingdom, en-GBhttps://www.harpercollins.co.ukcompanion novel;thriller;prequel;friends;siblings;murder mystery;party;clues;solve;puzzle;character led;1920s;flappers;cliques;alibis;friendship;school;project;gang;games;crimes;murder;tiktok;novella;short story;Isaac’s booklist heatstopper;tiktok made me buy it, [BLURB],[CITY],,books, ebooks, biblet, Book2look