Murder at Christmas — Kathi Daley

It is the week before Christmas and the Dolphin Bay Resort where Lani works is packed with holiday visitors. There is a strange flu working its way through the staff at the resort so those who are left have been asked to work double shifts. Lani works as a lifeguard by day and a Santa's Helper at night. Things go from bad to worse when Lani finds Santa dead in the alley behind the loading dock during the big Step into Christmas event the resort is sponsoring. As it turns out Santa is really one of the seniors who participates in the same Monday afternoon bingo game as Lani and her neighbor Elva, so Elva convinces Lani to investigate along with Luke and the senior sleuthing gang we saw in book 2 in the series.