<...danny phantom...>

Tech Hunter AU by UnluckyAlis

He knew his identity couldn't stay a secret forever. Eventually, someone would find out. But he always thought it would be on his terms. Instead, that chance is ripped away from him in the middle of a ghost fight, and now all of Amity Park knows the truth: Tucker Foley is the Tech Hunter. (Danny Fenton & Tucker Foley)

Black and White Roses by lexosaurus

When he died, he didn't get a memorial service. He didn't get the vigil, the flowers, the headstone. In fact, no one even found his body. (Danny Fenton & Valerie Gray)

Echoes by PhantomTwitch

There was something wrong with Danny Fenton. Nearly eighteen months after a lab accident left him hospitalized, his friends and family assumed he was still recovering from the side effects of his near-death experience. But after witnessing Danny do something ghostly, they begin to suspect something much more sinister is afoot and set out to save their friend from the clutches of the evil ghost possessing him. (Danny Fenton & Tucker Foley & Sam Manson)