Bob and Renee are in for a huge shock on Sunday's Fair City when Heather makes an unexpected return - take a sneak peek at the drama here.
Coming up in the soap, Bob and Ellie are having a chat in the sitting room when the door-bell rings.
Bob goes to answer the door and is visibly taken aback about who is standing on the other side.
Heather shushes him so as not to spoil the surprise and walks into the sitting room.
"How's my girl?" she greets Ellie, who jumps up to give her a big hug. "Isn't this the best surprise ever?", Heather says.
It looks like Bob and Renee don't share her enthusiasm...
Fans can find out what happens next on RTÉ One on Sunday at 8:00pm.
Fair City airs on RTÉ One on Sundays and Tuesdays to Thursdays.