Who DC Emma Wardlaw is
Detective Constable Emma Wardlaw works with DI Ian Blakeney on the investigation into Eliot Crace’s death. She is more openly suspicious of Susan than her senior colleague. Her presence prevents the editor’s familiarity with murder mysteries from becoming an automatic claim to innocence or privileged treatment.
Role in Marble Hall Murders
Wardlaw examines Susan’s account against the evidence associated with her car and movements. The inquiry reverses Susan’s usual position: she is accustomed to questioning other people’s stories, but now must explain her own. Wardlaw’s blunt manner adds pressure at a moment when Susan is already struggling to understand the unfinished manuscript and the Crace family’s conflicting accounts.
Key relationships
DI Ian Blakeney is her colleague and senior officer. Susan Ryeland is the person she suspects. Eliot Crace is the victim whose death they investigate. Elaine Clover becomes important because her actions distort the evidence Wardlaw is assessing.
Played by Anneika Rose
Anneika Rose plays DC Emma Wardlaw. Rose’s performance gives the police inquiry a sharper edge than Blakeney’s conversational approach. Wardlaw is best understood through that professional contrast, rather than as a hidden counterpart to somebody in the manuscript.
Their story and fate — spoilers
Wardlaw tells Susan that Blakeney’s friendliness is an investigative tactic designed to make her reveal guilt. Blakeney later rejects that interpretation. Elaine’s attempt to frame Susan explains the planted cloth and false account, while Frederick is exposed as Eliot’s killer. Wardlaw’s certainty is therefore tested by evidence that has been deliberately arranged to point in the wrong direction.
Books and television — book spoilers
Rose plays Wardlaw only in the contemporary strand; she has no Pünd-world double among the principal characters. Her role offers a useful contrast with the fictional detective’s ability to assemble a definitive final explanation. Susan must endure suspicion while the contemporary evidence is still incomplete. The adaptation’s movement between the two worlds makes that difference in certainty and control particularly visible.
Read or listen to the book
Marble Hall Murders (2025)
Anthony Horowitz’s novel behind the third television mystery.
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