Having retired to a farm near Eastbourne, Sherlock Holmes is forced back into action to investigate the death of his brother Mycroft.

Detecting the hand of R’luhlloig, Holmes and Watson are drawn into a battle that leads to R’lyeh, the Pacific island dwelling place of Cthulhu.

"[1] Mark Yon of SFFWorld said "Sherlock Holmes and the Sussex Sea-Devils is the culmination of this series and if you’ve liked the previous two novels you’ll like this one.

"[2] Starburst called the series "they are enjoyably suspenseful, with the mystery such as it is being played out with fervent, well-paced writing."

"[4] Sam Tyler in SFBook Reviews wrote "...this is a very well written and entertaining novel that pays homage to the legacy of two great creations and embarrasses neither.