A DARK PSYCHOLOGICAL THRILLER

A Trinity of Lies

One boy’s obsession. Two men with everything to lose.

At a Catholic boys’ school built on tradition and silence, hidden desires, dangerous obsessions and carefully guarded secrets threaten to destroy everything in their path.

A Trinity of Lies
Boarding School

SECRETS HAVE A WAY OF SURFACING

How far would you go to protect the truth?

A Trinity of Lies delves into the dark corridors of secrecy and the devastating consequences of deception. Set in a Catholic boys’ school, the novel explores themes of identity, faith, and the perilous nature of lies. As the characters navigate their intertwined lives, they uncover truths that challenge their beliefs and reshape their futures. This gripping story reveals how the pursuit of truth can be both liberating and destructive.

ABOUT THE AUTHOR

Meet Leslie Costar

Born in South London, Leslie Costar has always been fascinated by storytelling, history and the complexities of human behaviour.

After years of allowing ideas and characters to take shape, Leslie began writing his first novel, A Trinity of Lies, in 2025. The result is a dark, thought-provoking psychological thriller exploring identity, obsession, repression and the consequences of the secrets people keep.

Leslie lives with his partner, Karol, and their dog and cat, Reuben and Archie. When he isn’t writing, he enjoys tea, theatre, books and the company of animals.

A Trinity of Lies

What Readers Are Saying

★★★★★

"A well-written and gripping book about an eternal triangle with an unusual element in it. The characters are vivid, and the story is twisty. "

Susan Peak

★★★★★

"A well-written and gripping thriller that explores the dangers of schoolboy obsessions, hidden desires, and the tensions surrounding sexuality within the Catholic Church. An enthralling read that kept me engaged until the very end."

Steve Palmer

★★★★★

"Utterly gripping with characters you just can’t help but root for!"

Samuel Eves

★★★★★

"A page-turner with a roller-coaster plot and flawed characters."

Helen Woods