Imogen and the Veiled World

Imogen is grappling with grief and heartbreak. She has spent the last year pushing everyone away and trying to make up for a mistake that almost cost her the position she loves as a Grondian guardian-a group of elite warriors who are charged with protecting gods like Dryads and Celestials.  When Imogen's sister is found on the verge of death, Imogen knows she would give anything to save her. Desperate to find life-saving answers, Imogen sets off on a quest with a lower tree spirit named Noi, her newly appointed protector Emrys, and her betta fish familiar Toki.
After stumbling upon an ancient text, she learns of a hidden world. A land without magic unexpectedly promises a cure for her ailing sister but going there won't come without a price.  Will the sacrifice spare her sister in time?