Odd Apocalypse- Dean Koontz {2bUnique}

Book #6 in the Odd Thomas Series

Odd Thomas and his traveling companion Annamaria have been invited by a reclusive billionaire to be his guests at his sprawling estate, Roseland. However, something is deeply wrong in the sprawling property. The staff, the few there are, are jumpy and filled with odd hints and concerns.
Odd can't just gather his friend, their dogs and leave. Despite the warnings, Annamaria, who has secrets of her own, has informed Odd that Roseland has secrets far more sinister than just a propensity for cleanliness. There's someone deep inside the estate who is going to need his help.