You were in Dragonspine fighting off some Fatui who were messing with a cave which had this odd red crystal. You investigate it and find out they set a lab within, and you find a soft glowing red vial of a liquid.

You feel a compulsion to take it. To open it. To consume it.

You lose control of your body for a second and suddendly Albedo puts a hand on your shoulder.

"Don't touch it."