There are 8 books in the Lord Petteril Mysteries series. The newest book is Petteril's Baby which came out in 2025.

A missing family heirloom – and one of the family stole it.

In the spring of 1812, Piers Withan is dragged from his beloved Oxford to be the new Viscount Petteril. Burdened by responsibilities he doesn’t want and the remnants of a family who don’t want him, he is saved…
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2
Petteril's Corpse

Book cover of Petteril's Corpse
A murdered stranger in his home wood...

The discovery of a naked corpse upsets the new Viscount Petteril's return to his ancestral acres. The local magistrate, Robert Lindon, has no idea how to proceed with so heinous a crime. Neither has Petteril, but curiosity compels him to help – with…

3
Petteril's Ladybird

Book cover of Petteril's Ladybird
An earl's son, shot in the home of his mistress...

Lord Petteril, with his redoubtable assistant April, is called back to London to help prove the innocence of his friend, Percy Austen, who is suspected of murder.

Percy was once the lover of the victim's mistress, and his pistol was…

4
Petteril's Portrait

Book cover of Petteril's Portrait
A defaced portrait and the death of an artist – but is anything quite what it seems?

To the furious disapproval of his assistant, April, Lord Petteril insists on calling in on Lady Haggard's country house party – only to discover his hostess and her guests in uproar over a…

5
Petteril's Wife

Book cover of Petteril's Wife
Incognito in Portugal...

Lord Petteril's cousin, the newly commissioned Major Bertie Withan, has gone missing somewhere between landing in Lisbon and joining his regiment on the front line of the Peninsular War.

Piers and trusty assistant April, disguised as a government clerk and his wife to deter undue interest from…

6
Petteril's Folly

Book cover of Petteril's Folly
Time to confront reality – and a worrying mystery.

Lord Petteril and his new viscountess return to England to face the consequences of their unequal marriage, only to discover that Petteril's valet, the enigmatic Stewart, has been arrested for theft.

Naturally, Piers and April have to clear his name by…

7
Petteril's Christmas

Book cover of Petteril's Christmas
A merry Christmas for the Petterils?

Piers wants to make their first Christmas together special, and so it proves to be - just not quite in the way he planned.

His eccentric Great Aunt Prudence summons him to London with the news that she is dying and that one of…

8
Petteril's Baby

Book cover of Petteril's Baby
Why is there a baby on the Petterils' doorstep?

The discovery turns the household upside down. Where did the infant come from? Who and where is its mother, and is there a connection to someone in Petteril House? Inevitably, everyone has a scandalous theory, but tracing the truth of the…