Styx can be a mystical place of darkness.
The Styx-Mythology can get very deep and mysterious.
https://www.britannica.com/topic/Oedipus-Greek-mythology
https://en.wikipedia.org/wiki/Styx#River
https://www.theoi.com/Khthonios/PotamosStyx.html
Then there is Styx_the_band.
http://forums.melodicrock.com/phpBB/viewtopic.php?p=94642&sid=f4d559e6f0836e0461ce1e0784a8aa7d
Any long running band can have a dynamic history and its share of drama.
https://www.coasttocoastam.com/show/2023-09-15-show
https://en.wikipedia.org/wiki/James_Young_(American_musician)
https://en.wikipedia.org/wiki/Styx_(band)#Band_members