Lost letters have only one hope for survival...

Inside the walls of the Dead Letters Depot, William Woolf is one of thirty letter detectives who spend their days solving mysteries: Missing zip codes, illegible handwriting, rain-smudged ink, lost address labels, torn packages, forgotten street names—they are all the culprits of missed birthdays, broken hearts, unheard confessions, pointless accusations, unpaid bills and unanswered prayers.

But the day William discovers a midnight blue envelope addressed to “My Great Love,” everything changes. Written by a wistful woman to the true love she hasn't met yet, the letter inside captures William’s heart in ways he didn’t know possible. And as fate brings more of these romantic missives to his desk, William begins to wonder whether they're truly lost, or whether he might be the intended recipient—could he be her great love? Torn between the excitement of finding new love and the reality of his own strained marriage, William must set out to solve what could be the most important mystery to ever come his way.

The Lost Letters of William Woolf is an enchanting novel about the resilience of the human heart and the complex ideas we hold about love—and a passionate ode to the art of letter writing.

“This moving treatise on love and the art of letter writing will leave readers eager for more from this very talented writer.” -Booklist STARRED review

“A beautiful story celebrating life, love and letters. This is a luminous debut.” -Phaedra Patrick, author of The Curious Charms of Arthur Pepper

"If you liked Harold Fry and Me Before You, you will love Helen Cullen’s nostalgic debut.  With its themes of love, romance and frustrated hopes, this life-affirming book will draw you in and keep you there" -Independent newspaper, Ireland

“A love-letter to letters and a brilliantly written, moving homage to the power of words,The Lost Letters of William Woolf celebrates the magic of pen and paper.” -Nina George, New York Times bestselling author of The Little Paris Bookshop

"I LOVED this book. If you want a beautifully written story of love, loss, heartache, thwarted dreams and how to negotiate relationships as they change over time, this one's for you. A lyrical exploration of things said and unsaid, and the spaces between lives." - Emma Flint, author of Little Deaths