From the distance, standing on a cliff, Greg and Helena watched their child of the earth dance with her vampire mate.  Loving the smile her mate's family brought her. 

"It's been years since I have seen her smile like that."  Helena sighs softly. 

"Face it, my darling.  She hasn't smiled at all since we've turned her.  Not genuine like that at least."  Greg sighs. 
"True, my love.  I'm happy she has someone in this new life of hers.  But, it pains me to force my children to keep their secret locked away."  Helena frowns and walks away.  Looking out at the mountain view. 

"We've discussed this, Helena.  The time is not right for the Cullens to know about us.  But, fear not, my love."  Greg moves to stand behind Helena, brushing a finger over her soft cheek.  Making her shiver in pleasure.  "Our children will be ready soon.  And when they are...they will have to face the Volturi."  

Helena snarls as her eyes glow brightly, "Aro will send them to their deaths." 

"And won't he be surprised." Greg chuckles evilly. 

Helena giggles and turns to face Greg, "Still, once the Volturi will find out they exist with the Cullens, they'll do everything in their power to make them join the guard.  Aro is a power hungry bastard after all." 

Greg nods and holds his love close, "True.  Maybe we should send him a warning when the time comes.  If any harm comes to our children."  His eyes glow a cold silver. 

Helena snarls and looks out into the distance in Greg's arms,

"Volturi shall fall."