A pitch perfect creepy thriller, that leaves as many questions as answers, but in a very satisfying way. Rose house is imbued with an AI - *is* an AI. With its sole occupant - its architect and owner - long dead, and the house locked up, Rose House reports to the police that there is now a dead body inside.

The only person that Rose House has allowed inside is Dr Selene Gisil - an ex-pupil and now archivist of the long dead architect. Detective Maritza Smith gains entry on a fragile technicality in order to investigate the dead body.

The story is tensely claustrophobic. The AI that is Rose House is omnipresent, and the story has constant jeopardy, as the trustworthiness, capability, and motivation of Rose House itself are unknown - and there is a sense of unhinged wry amusement in the way that Rose House appears to toy with Maritza, whose presence in the house seems only tolerated through a tenuous and potentially malevolent curiosity.

Some aspects of the mystery are uncovered, others are skirted around or hinted at, and at the end of the story there is very little resolution. This is partly, or largely, due to the novella length of the book. This lack of resolution may not be to everyone’s taste, and it would be possible to complain that the story should have been given a more full, novel length treatment - and there is certainly scope to do so. But for me, those things left unsaid were satisfyingly tantalising, and I wonder whether fleshing out the details of those things that have only been roughly sketched would have moved it into the mundane.

Thank you #NetGalley and Pan Macmillan Tor for the free review copy of #RoseHouse in exchange for an honest review. All opinions are my own.