Second Chance at Life and Love by mudbloodproud
Rated: 3rd-5th Years [Reviews - 65]
Summary: “Is it true five years have passed since that night? That I have been dead for five years?”
Hermione had known love with Ron. But, now he was married to someone else and Hermione was alone with only her work at the Ministry to keep her busy.
But, when she was asked by Minister Shacklebolt to handle a problem, would Hermione find love with someone from her past?
Sirius Black’s life was cut short when he fell through the Veil in the Department of Mysteries. But, somehow, he inadvertently found a way to come back through the Veil.
When he was told it was five years after he fell, Sirius didn’t believe Kingsley. Sirius found himself being held in a room in the Department of Mysteries. A prisoner again.
When the door opened and a grown-up Hermione walked through it, Sirius was stunned. How could this be the same girl he had known?
This is the story of a lost girl, a man back from the dead, and a love story that will be talked about for years.
When Worlds Collide by jenny b
Rated: 6th-7th Years [Reviews - 254]
Summary: 
Rose was a Weasley. She never gave Scorpius Malfoy a second glance. They were sworn enemies, even though they’d barely even spoken to each other. But sometimes all it takes for love to blossom is a Potions lesson, a few snide remarks and a dropped book.
Two people. Two entirely different worlds that are suddenly intertwined.
Hermione Wild by Hutchinson
Rated: 3rd-5th Years [Reviews - 105]
Summary: Ginny lures Hermione to do some sneaking about late one night, straight into mischief. Little do they know, a sneaky Slytherin sees it all...
Clair De Lune by Astrid Skywalker
Rated: 6th-7th Years [Reviews - 386]
Summary:
It was full moon when the Dark Lord sealed a part of his soul within a magical amulet, and then broke it in half. One half was left to the faithful werewolves to guard. The other half was tossed into the impenetrable depths of time where no one but him could get it. When the first half has been found, the Order of the Phoenix selects Hermione Granger to go back into the past to search for the missing piece. What is waiting for her is a brutal task that will test her beyond her limits, and an undying love that extends beyond the boundaries of time.
RL/HG, Post-HBP
No werewolves were harmed in the making of this story.
Update (9 May): Chapter 17, Burning, is up! Enjoy!