It make be a Wild Skein, a discontinued base, retired color, maybe a holiday color!
I will be wrapping up all the yarn before listing so it will even be a surprise for me!
Bases and colors will vary.
While each color has its own specific recipe every skein is individually hand dyed and hand painted which may cause colors to vary in distribution.
If using more than one skein in a project I recommend alternating skeins.