Style: dark mythological metal, cinematic atmosphere, mid-tempo with slow build and explosive chorus, heavy low-tuned guitars, deep bass pulses like underwater currents, ritualistic percussion with sparse but sharp hits, layered vocal textures, female lead vocal (melodic but eerie, with subtle harmonies and wordless melodies), male spoken/recitative parts (low, urgent, almost desperate). Add sound design: low sub-bass rumble as constant undertone, distant underwater gurgles, subtle water droplets and echoing ripples, ghostly wind tones. Maximize cinematic impact with long atmospheric swells, dramatic pauses, huge reverb tails. Extended outro with layered wordless vocals, slow fade with increasing reverb and delay, final sound like water closing over head.