Curse of Coyote Lake by J.T. Kunkel

Miranda Marquette reconnects with her family after years of separation. The next day, on a hike around nearby Coyote Lake, they discover two bodies anchored at the bottom of a holding pond near the lake.

Soon, they find out that victims are Miranda’s neighbors, Jerry Carter and Matoska. Once again Sally Roop, Miranda’s neighbor, comes under suspicion for the murders. Somehow, there is an international connection to the case, but clues are few and far in-between.

Once again, Miranda enlists her friends Margo, Wanda and Lyanne - the WAIT club - to solve the case. But can they figure out who the killer is and bring him to justice?