Opens in a new tab

What You Don’t Know

NEW PSYCHOLOGICAL THRILLER

A fresh start on a remote island unravels in this tense, twisty, standalone thriller.

What You Don’t Know . . . will hurt you

Teaser

Home on a secluded island should be safe… but isn’t.

Tess and Joe are living the dream on Wyeebo Island. She writes children’s mystery books and loves having her husband home on weekends. He has it all, a travelling job he excels in and a wife he adores.

But how well do they really know who they’re married to?

A prowler in Tess’s neighbourhood triggers trauma over her best friend’s unsolved death – and dread of history repeating. Tess does odd things she can’t remember, and Joe acts cagey. They each have secrets that converge with the abduction of a young local woman.

Who can they trust when they don’t trust each other, or themselves? With nobody and nowhere safe, can Tess stop what she doesn’t understand… or will somebody else die because of her?

Reviews

“Wow! It was very hard to put down. Loved it.”

Ian, reader

“A very believable, tension packed ride of a novel.”

Karen, Aust Crime Fiction

“With elegant prose, multiple timelines, characters who are emotionally resonant and riveting, psychologically chilling and heartwarming, too, WHAT YOU DON’T KNOW is as stunning as its beautiful, atmospheric island setting.”

5 stars from Poppy Gee, Goodreads reader

“This book is a speeding train that kept me going. Multiple mysteries … what next … what now … who’s there … complex and creepy. Family ties, community located on the beautiful island, and lots of surprises. It’s got everything : a thrilling story, resolution, redemption …
moved me to tears : I cried.”

5 stars from CriminalRepurcussions, Goodreads reader

“Tense, twisty, terrific.”

Vanda Symon, bestselling author of the CWA New Blood Dagger Award-shortlisted Detective Sam Shephard series

“Sandi Wallace has crafted an unsettling claustrophobic tale of small-town secrets, ramping up the tension inexorably towards an explosive climax.”

Alan Carter, Ned Kelly and Ngaio Marsh Award-winning author of FRANZ JOSEF

“A web of secrets and lies kept me turning the pages as Sandi Wallace took me on a deliciously tense and suspenseful journey… A true ‘just one more chapter’ read!”

Nikki Crutchley, author of IN HER BLOOD and finalist in the Ngaio Marsh Awards

“I highly recommend this book if you want a great thriller. Right up until the last pages, the reader is still finding out secrets. Brilliant book. With all it’s twists and turns, it kept me up late into the night wanting to know answers. Tess and Joe live on an island, a perfect setting for a story as when strange things start happening… ”

5 stars from Theresa, Goodreads reader

“Wallace’s latest is a riveting psychological thriller that is hard to put down.”

5 stars from Marianne, Goodreads reader

Where to buy

WHAT YOU DON’T KNOW is available in print and electronic versions at a variety of online and physical bookstores worldwide with more coming soon, including your favourite Amazon store, Angus & Robertson (Australia), Apple Books, Booktopia (Australia), Fable, Google Play, Kobo, Need2Read Warragul (Australia), Nook (Barnes & Noble), Smashwords, Target, Turn the Page Bookshop (Australia), Walmart, Waterstones, Vivlio, and many more.

BUY PAPERBACK, HARDCOVER OR EBOOK at your preferred distributor. Some further links may be found here.

PERSONALLY SIGNED PAPERBACKS ARE AVAILABLE FOR PURCHASE FROM SANDI. Please contact her with queries and also email Sandi for orders on behalf of library services. (AUSTRALIA ONLY)

NEW PSYCHOLOGICAL THRILLER

A fresh start on a remote island unravels in this tense, twisty, standalone thriller.

What You Don’t Know . . . will hurt you