It begins with a dream.

The year is 1987, and eleven-year-old Binnie Burgess has been enjoying living with the Warrens, her foster family, and exploring her idyllic new hometown of Cherryton, Kent. Following the tragic deaths of her parents when she was just two years old, Binnie is finally settling into her life. But then one night she wakes from a dream that feels entirely too real, and she starts to question everything. What does it mean that she seems to travel through time in her sleep? Could it actually be possible that she has the ability to influence past events? When Binnie and her foster family take a day trip to Dover Castle, she has the shocking realisation that she was, in fact, the "young local girl" who warned British troops of the French armada's invasion during the Napoleonic Wars.

Amid train rides through the English countryside, brushes with Guy Fawkes and plots against the future King of England, visions of mysterious monuments, and astonishing revelations about Binnie's past, Dreamonition builds to a crescendo: Binnie must decide who she can trust with her secrets, learn to understand her superpower, and journey sixty-one years into the future-before it's too late.