Warning: This article contains spoilers for season 3 of The Legend of Vox Machina.While the season 3 finale of The Legend of Vox Machina ended on a perfect high note that reunited the Vox Machina team, the final scene showed that a threat even greater than the Chroma Conclave is on the horizon. Perhaps more importantly, it’s a threat that has been in the making ever since the end of season 1, when Sylas (Matthew Mercer) and Delilah Briarwood (Grey Griffin) died trying to summon it. While season 3 answered many burning questions left by The Legend of Vox Machina season 2, it also presented new mysteries and emotional gut punches.

https://screenrant.com/legend-vox-machina-season-3-finale-season-1-whispered-one-villain/