Haven never includes a detail that isn't important, and the Syfy series will answer a three-season old mystery when it returns this fall.

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Audrey Parker (Emily Rose) and Nathan Wuornos (Lucas Bryant) have handled mystery after supernatural mystery over the last four seasons, but the inquisitive duo have never once inquired about the rings they each received during season 2. According to TV Line, this is about to change.

"I can assure you that yes, the rings will play a role in the show's supersized new season," wrote TV Line reporter, Matt Webb Mitovich on Thursday.

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Unfortunately, no details regarding the rings' importance or origins were given.

For those who don't remember, Nathan received his gold band during the season 2 premiere, "A Tale of Two Audreys." Pulled from the rocky remains of his father, the ring has since been kept on a chain around the police officer's neck. Twelve episodes later, Vince (Richard Donat) and Dave (John Dunsworth) gave Audrey a similar ring during "Sins of the Father." Other than knowing that the ring previously belonged to Sarah, Audrey knows nothing of the object.

Haven is currently filming a 26-episode season 5 in Nova Scotia, half of which will air in 2014 while the other half is slated for 2015.