Welcome to The Literary World of

Claudia MacTavish

Mysteries, suspense and unforgettable stories await.

Mercy College courtyard under a golden sky and a gathering storm.

Explore the Series… a Whole Library of Books to Discover

Where to begin

School rivalries

The Lyla Thomas Mysteries

Nothing ever happens at Kingston Primary. Then someone defaces a poster, and Lyla Thomas has a decision to make. Year 6 election season has arrived, and Lyla has been quietly reading the School Captain sign-up sheet for days without writing her name on it. With her four best friends nudging her (and rival Zara Whitfield's promise of free dress days and longer lunches already up on the noticeboard), she finally steps forward. But before the votes are even counted, a poster is defaced, rumours spread, and the campaign turns ugly. Lyla has always noticed things. Now she has to work out which of them matter, and what to do when the answer points at someone she'd rather it didn't. Because the hardest part of any mystery isn't finding the culprit. It's being fair about it. A warm, funny, clue-filled first case for readers who love school stories with a proper puzzle at the centre.

  1. Book 1 - Sabotage
  2. Book 2 - Confessions
  3. Book 3 - Broken
  4. Book 4 - Reckoning
  5. Book 5 - Misplaced
  6. Book 6 - Whispers
  7. Book 7 - Entrusted
  8. Book 8 - Nameless
  9. Book 9 - Silence
  10. Book 10 - Unearthed
  11. Book 11 - Ruined
  12. Book 12 - Restored
Hidden histories

The Martha Thomas Mysteries

Thirty-one late marks. Twenty-four of them on one bus route. And one girl who is always, always early. Martha Thomas is eleven, new to Mercy College, and the kind of girl who colour-codes her planner. She arrives at the gate at ten to seven every morning, because that is when Dad's shift lets her. She is not the only early arrival. A girl comes out of the grounds shed before anyone else is there, a bus roll always says twenty-three when only twenty-two girls ride, and an old cream bus sits in the back corner, "kept for parts". When the school's late-mark numbers start to look wrong, Martha has the facts, the notebook and a Head of Middle School who says, "Find out carefully, because if you're wrong it costs somebody." Martha is sure she can be careful. She is not sure she can be quick enough. A gentle, observant first case for readers who love a school story with a question hiding in the timetable. Some girls are always late. Some are always early.

  1. Book 1 - The Newcomer
  2. Book 2 - The Informant
  3. Book 3 - The Benefactor
  4. Book 4 - The Sisterhood
  5. Book 5 - The Understudy
  6. Book 6 - The Initiate
  7. Book 7 - The Successor
  8. Book 8 - The Revelation
  9. Prequel - The Founding
Claudia MacTavish outdoors

Meet the Author… the Mind Behind the Mysteries

Claudia MacTavish

Claudia MacTavish is an Australian author of mystery and suspense for younger readers and teens, and the creator of The Lyla Thomas Mysteries and The Martha Thomas Mysteries.

Read Claudia’s full bio

Based in Western Australia, Claudia has always been drawn to the stories hiding beneath ordinary places: an old photograph with no name written on the back, a school corridor after everyone has gone home, a forgotten document tucked inside a book, or the small detail that everyone else seems to have overlooked.

It is probably no surprise, then, that her stories are filled with curious characters who ask questions.

Claudia writes mysteries grounded in friendship, family, school life and the complicated business of growing up. Rather than detectives chasing criminals through distant cities, her characters usually begin with something much smaller: a rumour, a missing object, an unexplained message, a secret someone would rather leave buried. From there, one question tends to lead to another.

Her two mystery series explore different stages of that journey.

The Lyla Thomas Mysteries introduce younger readers to Lyla Thomas, an observant and determined girl with a habit of becoming involved in mysteries she never intended to investigate. Beginning with Sabotage, the series explores friendships, rivalries, loyalties and secrets against the familiar backdrop of school life.

The Martha Thomas Mysteries take readers into darker territory.

Set largely around Mercy College, an old Catholic girls’ school with nearly two centuries of history, the series follows Martha Thomas through a world where traditions run deep, reputations matter and the past has a persistent way of finding its way into the present. Beginning with The Newcomer, the books blend contemporary school life with mystery, suspense and the lingering question of how well we ever really know the people and places around us.

Although the two series are written for different age groups, they share the same fictional world and the same fascination with what lies beneath the surface.

Claudia has a particular fondness for history, old photographs, family stories and places that have accumulated generations of memories. Those interests frequently find their way into her fiction, where objects, buildings and seemingly insignificant details can carry stories of their own.

She is equally fascinated by people: the friendships that survive difficult moments, the ones that do not, the secrets people keep for good reasons and bad ones, and the strange chain of consequences that can begin with one seemingly harmless decision.

At the heart of Claudia’s stories is a simple idea: mysteries are rarely only about discovering what happened.

They are about discovering why.

When she isn’t disappearing into the worlds of Lyla, Martha and Mercy College, Claudia can usually be found following some new curiosity, researching something she had no intention of researching, or wondering whether an interesting old building might be hiding a story.

There usually is one.