[7] Since June 2010, she became a freelance editor of educational materials for DYS adaptations (Dyslexia)[8] and began writing fictions for publishing houses such as Casterman, Castelmore, Thierry Magnier, Gulf Stream, Hachette, and Gallimard.

Her novel 8,848 mètres, published by Casterman and edited by Vincent Villeminot in 2020,[11] is inspired by the story of her cousin Marion Chaygneaud-Dupuy, who lived in Tibet for 20 years and climbed Mount Everest 3 times.

They continue their collaboration with the novel Lune Rousse, Les Loups-garous de Thiercelieux in November 2018, around the universe of the eponymous board game by Philippe des Pallières and Hervé Marly.

Silène Edgar published two novellas for an adult audience: Fortune Cookies, a short story of anticipation on the state of emergency, and Féelure, burlesque fantasy[citation needed].

She also published Les Affamés (2019) at J'ai Lu (collection Nouveaux Millénaires), with a preface by Pierre Bordage, which describes a hygienist democraty with republican appearances, but hiding a regime prone to censorship and violence.

From 2009 to 2013, she was a permanent volunteer at the Cocyclics association, a place of art and culture for authors of the imaginary created in 2007 where she managed the forum on a daily basis, organized and intervened in literary events in person and remotely.