Daphne debuts on London's marriage market as a new gossip sheet sets high society atwitter and Simon, the eligible Duke of Hastings, returns to town.

After Daphne catches the eye of a royal suitor, she turns to Simon for relationship advice. Lady Featherington tries to browbeat Marina into marriage.

Daphne receives a stunning gift from Prince Friedrich but soon courts scandal at a ball. Eloise searches for clues to Lady Whistledown's identity.

Amid accusations of lies and betrayal, a rift forms between the newlyweds, while a deception of another kind could besmirch the Bridgerton family name.

The duke and duchess's season-ending ball signals a turning point for their marriage — and ushers in changes of fortune and fate to those around them.