Secrets of an Aztec Temple - Isabella Mumphrey Adventure Series, #2

Book two of the Isabella Mumphrey Adventure series Revenge isn't always sweet.  Isabella Mumphrey can't leave a puzzle alone.  Much like Indiana Jones and MacGyver, she has a knack for getting out of sticky situations. This time she attempts to use her anthropology knowledge to uncover who is stealing priceless artifacts from an Aztec Temple in Mexico City. Tino Konstantine is also in Mexico City.
He has infiltrated a drug lord's organization to find enough evidence to not only prove the man's illegal activities, but to bring him down for numerous deaths. Namely those of Tino's family. But when their operations collide, and Isabella strolls into the drug lord's home, Tino is challenged with the choice of saving her or fulfilling his revenge.