South American literature

HMMM,.. I need to write a commentary comparing the two texts (Like Water For Chocolate by Laura Esquivel and Chronicle of a Death Foretold by Gabriel Garcia Marquez.)

And da thing is.. i need to choose a topic before writing the commentary but i cnt think of anything right now... The topics shouldn't be social or cultural but literary: Purely on its texts.....

One i could have would be the effect of foreshadowing at the beginning of both novels but they are too prosaic and too broad...

im looking for topics that are fresh, innovative and something extraordinary...

Before anything i would like to say that many topics as you could think of are greatly appreciated... TNX folks...!!