Murder by the Glass (The Verity Long Mysteries)

Merlot-loving researcher Verity Long was happily sipping her way through a wine tasting weekend with her crime-writer boss — until the corpse of a fellow guest turned up in the winery.
When a storm isolates them and brings down power and phone lines, Verity forgets bouquets, acidity, and floral top notes to concentrate on catching a killer.

Unable to contact the police, and with no internet for researching her suspects' motives or backgrounds, the amateur sleuth will need to sniff out the kil...