The problem with these trilogy Nancy Drew's is that it's either three different authors or one author writing all three and not keeping up with their own writing. Two small inconsistencies with the earlier novels bothered me. Firstly, in book 1 one of this trilogy we're told Nancy got to go on Bess and George's competition-winning trip to Costa Rica because they use someones excess frequent flier miles. In book 3, we're told Bess, George, and Nancy pooled their money to pay for Nancy's ticket. Similarly, at the end of book 2 a woman is attacked by ants so a guy (Enrique) picks her up and tosses her into a pool, yet in book 3 we're told she jumped in herself. Small inconsistencies, but something that could so easily have been picked up and fixed.
But why am I looking for quality in these books?