Haunted Holiday
Giant battle robots! Cotton candy betrayal! Blasts from the past! And the ultimate challenge to stay true to themselves and each other await Theo and Alexander in the final book in the tragic series about the Sinister-Winterbottom twins, who must solve one wretched mystery after the next, brought to you by #1 NYT bestselling author Kiersten White.
Trapped in Aunt Saffronia’s spectral house, Theo and Alexander must work together to escape, stop their newfound nemesis Essa and her henchman Edgaren’t, save Wil and their friends, find their parents, and maybe, just maybe, get things back to normal.
Following the clues left behind, the twins find themselves at Siren’s Song Seaside Amusement Park. Old faces and new surprises await them in a park that was built to lure in visitors…and their secrets.
As they get closer to answers, the twins are left with the biggest question of all: Who is Essa really, and why is she so determined to find their parents?
Kiersten White
Kiersten White’s storytelling is a blend of fierce imagination, sharp wit, and deep emotional resonance. Known for her ability to spin complex tales of fantasy, horror, and the supernatural, White has captured the hearts of readers with her distinctly bold, often dark narratives. Her stories are where the boundary between the ordinary and the extraordinary blurs, where readers are invited to dive into worlds filled with magic, monsters, and unforgettable heroines.
Born in Salt Lake City, Utah, Kiersten grew up with a passion for both reading and writing, though she was the kind of person who loved to daydream about new worlds before ever setting them down on paper. From an early age, she found herself enchanted by stories that pushed the limits of what was possible—stories that felt real, even when they were anything but. That love of the fantastical is something that continues to infuse her books, drawing from her own love of adventurous narratives and her curiosity about what lies beneath the surface of reality.
Sinister Summer
Sinister Summer consists of five books. The current recommended reading order for the series is provided below.