Despair (Percy Jackson Avengers crossover)

Grief and sadness. That is all I felt. I could have saved them. But now Hazel, Frank, Jason, and Piper were dead. Just because that stupid dirt face had to rule the Earth. At least I still had Annabeth. I have never left her side since the battle in Greece. But now S.H.I.E.L.D has a interest in demigods. Will the d...