*If you would like your copy of DARKER BY FOUR (US edition) signed & personalized by me (with a quote, doodle, etc.!), please order HERE from Books of Wonder and fill in the details. Ships internationally.

US/Canada: Barnes & Noble, Amazon US, Bookshop.org, East City Bookshop, Blue Willow Bookshop, Mysterious Galaxy, Astoria Bookshop, Booksamillion, Book People, Books and Books, Third Place Books, Changing Hands, Harvard Bookstore, Hudson Booksellers, Kepler’s, Porter Square, Tattered Cover, Kinokuniya USA, Indigo, Audible, Libro.fm

UK/Aus/NZ: Waterstones, Blackwells, Booktopia, Amazon UK, Amazon AU

Singapore: Kinokuniya SG

Worldwide: most of the above retailers ship worldwide!

If your preferred/local bookstore is not listed, please go to their website to check or reach out to them directly