"Wall of the Unbelievers?"
The information Bishop had let slip serendipitously left the Outlander both surprised and puzzled, uncertain whether it was religious rhetoric or if such a thing truly existed.
He reached out to return the commemorative coin to Bishop Owen, but the bishop gestured that he needn't take it back:
"Keep it as a keepsake, Mr. Hamilton, since it was originally intended for promoting the Holy Prayer Day, anyway. You are welcome to visit Dawn Chapel anytime. We hold very formal sermons every week, or even if you simply wish to unburden your troubles in the Confession Room."
He hadn't given up on the idea of converting Shard to his faith.
Shard verbally agreed, casually pocketing the coin in the front pocket of his shirt to prevent it from slipping out of his coat pocket.
After Bishop Owen left for other matters, Priest Augustus took Shard away from Dawn Square to fetch the Magic Potion "The Price of Growth".