Was it fate that led to destiny. Or was it destiny that brought fate?

Destiny and Fate walked through the smoke of the last battle with a mission in mind-returning something the Maiden thought she lost a long time ago when the earth was young. But being there brings a threat of its own, something is blocking the return portal and they may not be able to get home again. Help comes from an unexpected source, but can they trust this source? That's the real question.