You may have heard the abhorrent tale of the two brothers Cain and Abel, but did you know that they might have been more than just bothers - maybe even... twins? It's a story often told, but it seems to leave more questions than answers. Questions such as, "When did God instruct his people to offer up sacrifice as a form of worship?" or "Where did they go to offer these sacrifices?" or even "Why was Cain's offering insufficient in the eyes of God?" We explore all this and more in this next episode of Stained Glass Stories.