For thirteen-year-old Mitch, still grieving the loss of his grandfather, the boundary between reality and nightmare begins to dissolve. Haunted by vivid dreams of collapsing buildings, apocalyptic trumpets, and a mysterious white cat, Mitch soon discovers that something dark is watching him - even in the safety of his own home.When the enigmatic feline leads him through a hidden portal beneath an ancient oak, Mitch awakens in The Still Sea, a liminal realm where lost souls and impossible creatures dwell. There, he encounters Kael - a collector of purity and regret - who seeks to claim Mitch as part of his eternal collection.Guided by an unlikely trio - a brave girl named Hayashi, a refined pumpkin-headed gentleman, and the same spectral cat - Mitch must confront Kael's living fog and his own fears to recover a mystical stone that could return him home.Kael is a haunting, poetic journey through grief and imagination - where dreams are both refuge and danger, and where the only way forward is to face what we fear most.