Ever have one of those mornings where you are sleeping with your husband and your disguise starts failing and have to run from said husband because he wants to bash your head in thinking you stole his wife? Cadence is having one of those mornings and she is not amused.
In her escape from her husband, she stumbles upon the caves. It was wandering in them while she was trying to find a solution that she walked into it, literally. Though, it was one she wasn't expected and might have wanted to avoid.