On an Outgoing Tide
by Caro Ramsay

Two murders, forty years apart. What links them? Detectives Anderson & Costello undertake their most baffling investigation to date.

The body is found in the early hours of the morning, drifting lifelessly on the outgoing tide. Twenty-three-year-old medical student Aasha Ariti had been enjoying a night out to celebrate the end of lockdown. Anthony Poole, the last person to have seen her alive, is the prime suspect.

Before detectives Anderson and Costello can make further headway, they are pulled off the case to investigate the murder of a pensioner in his own home. The body of eighty-one-year-old Jimmy Pearcey reveals evidence of prolonged, excruciating torture in the hours before he died. Of one thing DCI Anderson is certain: this killing was very close and very personal. But the victim was a loner, without friends or relatives.

As they dig deeper however, the two detectives uncover a number of secrets in the dead man’s past. Secrets that link to another murder more than forty years before. What really happened on 21st June 1978? Someone is determined to ensure that Anderson and Costello never find out. Whatever it takes …


A multifaceted plot, complex characters, and plenty of suspense make this a good pick for fans of British procedurals

Booklist on The Red, Red Snow

An attention-grabbing procedural with unsettling surprises

Kirkus Reviews on The Red, Red Snow

Gripping ... Pithy dialogue, plenty of wintry Highland atmosphere, and villains that readers will love to hate

Publishers Weekly on The Red, Red Snow

A skillfully written thriller with a palpable sense of dread and disaster that will grab readers from the first page through to the shocking conclusion

Booklist Starred Review of Mosaic

Terrific ... Ramsay keeps the reader guessing right up to the final, satisfying denouement. Suspense fans won't want to miss this chiller

Publishers Weekly Starred Review of Mosaic

A wild ride packed with mysterious questions and shocking answers

Kirkus Reviews on Mosaic

Caro Ramsay

CARO RAMSAY is the Glaswegian author of the critically acclaimed Anderson and Costello series, the first of which, Absolution, was shortlisted for the CWA’s New Blood Dagger for best debut of the year. The ninth book in the series, The Suffering of Strangers, was longlisted for the McIlvanney Prize 2018.@CaroRamsayBooks | caroramsay.com

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On an Outgoing Tide by Caro Ramsay is available in the following formats

Hardback97807278907576th April 2021148 X 225mm256$28.99
Hardback978072789075729th January 2021148 X 225mm256£20.99
Ebook97814483050181st March 2021N/A256$14.99
Ebook97814483050181st March 2021N/A256£4.99
Hardback - Large Print978144830853831st May 2022150 X 225mm368$36.95
Hardback - Large Print978144830853831st March 2022150 X 225mm368£22.99
Paperback978178029763727th September 2021120 X 165mm256$17.95
Paperback978178029763729th July 2021120 X 165mm256£13.99
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