Talk:Keefe and Sophie/@comment-2601:242:C100:DFD0:183F:CD6D:29E2:55E9-20191110005725/@comment-38326700-20191110181603

Quintessence is the light from an unmapped star. There are 5 unmapped stars, and each star's light is different. It makes you feel different things (like when the Black Swan had Sophie and Keefe light leap using them to find out how the Neverseen were tracking them). In Legacy (not sure if you read it), they describe the differences between each star's light.

Hope this helped!