Bloomsbury presents Blood Sisters by Graham Masterton, read by Lucianne McEvoy.

Why would nuns need protection from a killer?

In a nursing home on the outskirts of Cork, an elderly nun has been suffocated in her sleep. It looks like a mercy-killing – until another sister from the same convent is found floating in the Glashaboy river.

The nuns were good women, doing God's work. Why would anyone want to kill them? But then a child's skull is unearthed in the garden of the nuns' convent, and DS Katie Maguire discovers a fifty-year-old secret that just might lead her to the killer...

If they don’t find her first.

'One of this country's most exciting crime novelists.' Daily Mail

Perfect for fans of Peter James, CJ Tudor and Chris Carter, Blood Sisters is part of the darkly original million-copy-bestselling DS Katie Maguire thriller series, which can be read in any order.

Also in the DS KATIE MAGUIRE series

#1 White Bones
#2 Broken Angels
#3 Red Light
#4 Taken for Dead
#5 Blood Sisters
#6 Buried
#7 Living Death
#8 Dead Girls Dancing
#9 Dead Men Whistling
#10 Begging to Die
#11 The Last Drop of Blood
#12 Pay Back the Devil

Why readers love Katie Maguire...

'A tough and gritty thriller.' Irish Independent
‘A natural storyteller.' New York Journal of Books
'Any fan of mysteries should grab this book.' Irish Examiner
'Books in this series and they never fail to entertain.' Reader review *****
'A fierce read with a plot that feels topical.' Reader review *****
'Devastatingly brilliant...Brilliant, exhilarating writing.' Reader review ****
'Riveted from start to finish.' Reader review ****
'A first class detection novel.' Reader review ****
'Amazing, the man is a genius.' Reader review **** C 2025 Graham Masterton|P 2026 Bloomsbury Publishing PLC