Books in the A Last Ditch mystery series

Lexy Campbell is begged by her ex-husband to find his wife, Brandee, who has disappeared. As Lexy begins her investigation, Bran finds one of Brandee's false nails along with a ransom note. The note has the same message as was found where the statue of local legend Mama Cuento was stolen. Are the two cases linked or is a copycat on the loose?