Pjallarane's Stone is a rock formation in Irrisen's province of Thronehold. According to legend, Baba Yaga turned her rebellious daughter Pjallarane to stone here – and the formation does bear a remarkable resemblance to a woman clinging to a tree and begging for mercy. However, most scholars believe Pjallarane departed Golarion with her mother, just like all the other former Queens of Irrisen.
The stone does seem to have some strange arcane power, however, although no one has ever been able to access it. Some believe the stone might hold the key to banishing Irrisen's eternal winter, although there is scant evidence for this.