Is there an errata PDF for this? I'm on page 3 and have come across a sentence that doesn't make any sense: "Without warning the current runelord, an archmage named Karzoug, they retreated deep into the tunnels beneath the city, placing thousands of feet of stone between themselves and the ruin to come."
I thought we were talking about one archmage, Karzoug, so who is "they"/"them"?