Murder at the Seaview Hotel
(Book)

Series numeration from goodreads.com.

"After the death of her husband Tom, Helen Dexter is contemplating her future as the now-sole proprietor of the Seaview Hotel. There's an offer from a hotel chain developer to consider, but also a booking from a group of twelve Elvis impersonators, a singing troupe called Twelvis. Tom loved Elvis and for Helen this is a sign that she should stay. But the series of mysterious events which follow, suggests that the developer is not going to give up easily. Then, shortly after Twelvis arrive, one of the group disappears. His body is found floating in a lake, with his blue suede shoes missing. Could the two be connected? With the reputation of the Seaview on the line, Helen isn't going to wait for the murderer to strike again. With her trusty greyhound Suki by her side, she decides to find out more about her guests and who wanted to make sure this Elvis never sang again."--Publisher.