Bianca has chosen rebirth. As a newborn baby, she's washed down the river Lethe and ends up as Estelle Jackson-Blofis and has lived the first twelve years of her life like a normal girl. But after a day in the park goes weird, Stella gets visions from her past life. Who is the cute little boy that she loves so dearly? Who is the girl with the silver circlet and speaks in Old English? But most of all, who is the Italian girl with the dark brown hair that Stella sees each vision from?

Gwenwyn is the most miserable princess ever, and for good reason. Merely brushing up against her or touching her exposed skin is enough to cause painful burns, or worse. And if that wasn't enough, she's just discovered the singular reason for her existence - to act as the king's secret assassin, murdering neighbouring princes with nothing more than a simple kiss.