The Relic is an ancient rune stone
Kingdom of Liars 3
In KOL 3 the Hernessians and the Steel Fist Templars have been given the order to escort the relic towards the museum. Both parties want to fulfill this task, but the steelfist want to do this alone. High Commander Erburgart of the steel fist templars states that the hernessians aren't known for their known for teamwork with other parties. He also says that Hernessians aren't as loyal and trustworthy as templars. But the unnamed hero still persuades him.