Not So Very Sensible (#03 in The Silver Teapot Series)

Two Sisters Navigate the Minefield of Modern Dating
 
Elinor and Katie Bennett are as opposite as sisters can be: Elinor loves structure, planning and design, while Katie’s head is in the clouds as she chases fanciful, romantic dreams. A college graduation trip to the Blue Mountains sees them staying at the Hydro Grand hotel for a murder mystery weekend. There, they end up meeting two men who just might hold the keys to their hearts—taking the sensible Elinor Bennett by surprise while crushing the romantic Katie’s hopes. . .and proving that the path of love doesn’t always follow one's plans or dreams.
 
The Silver Teapot series
Book 1: Not Exactly Mr. Darcy
Book 2: Not Precisely Mr. Knightley