Nico, the son of Hades, and his boyfriend Will, the son of Apollo, travel to Tartarus, the deepest, darkest part of the Underworld as they attempt to rescue an old friend. As the son of Hades, Nico di Angelo has been through so much, from the premature deaths of his mother and sister, to being outed against his will, to losing his friend Jason during the trials of Apollo. But there is a ray of sunshine in his life-literally: his boyfriend, Will Solace,...

When popular Henry Harrison asks twelve-year-old Elizabeth to help dispel a ghost that speaks her name, she calls on her estranged father and learns he is an attorney for the damned.

"Greek and Roman demigods from the Prophecy of Seven must work together to seal the Doors of Death--and help Percy and Annabeth escape the Underworld in the process"--

"Team DEVIL reunites and takes another journey to the land of the living--this time, to stop a madman from unleashing the terror of The Devil's most prized possession, his dreamcatcher"--

Even the love of her boyfriend, Xavier Woods, and her archangel siblings, Gabriel and Ivy, can't keep the angel Bethany Church from being tricked into a motorcycle ride that ends up in Hell. There, Jake Thorn bargains for Beth's release back to Earth. But what he asks of her will destroy her, and quite possibly her loved ones as well.

Seventeen-year-old Nick buys a used cell phone only to call his girlfriend, but strange and desperate people keep calling--one of them a denizen of Hell--begging for or demanding his help.

"Donny Taylor is adjusting to life in Sulfur and his role as personal assistant to archdemon Angela Obscura. But when he's almost killed again, he begins to question whether or not Angela cares about his fate at all. Maybe he should leave? But how will Angela react?"--

Pandy, Alcie, Iole, and Homer hunt for the worst Evil of all--Fear--in the dreaded underworld where Hera has been wreaking havoc and such infamous villains as Tantalus, Sisyphus, and The Danaids have been freed from their eternal punishments.