Buying Christmas presents at the mall. Completely normal right? Wrong. I know what you're asking. How can shopping go wrong? For Percy Jackson, Leo Valdez and Piper McLean, everything can go wrong. When the three demigods go gift shopping, they end up being chased, attacked, and captured by a group of heroes called the Avengers. This is an Avengers/Percy Jackson crossover. If you like this, you should read my other one. It is called 'BROKEN'.