Avengers West Coast #52 [Direct]-Fine (5.5 – 7) Origin And "Death" of Tommy And Billy Maximoff

"Fragments of a Greater Darkness" Part 2 of 2. In horrifying fashion, Master Pandemonium has incorporated the souls of the Vision and Wanda's children into his body! And now in his demonic dimension, Earth's Mightiest Heroes wage a truly desperate battle to save the twins! But can the Avengers save two children who may have never really existed? As the fight rages, the west coast team discovers the true villain behind this terrible circumstance: Mephisto! And with help from Agatha Harkness and Ebony, the Scarlet Witch defeats the dark lord! But if ever there were a hollow victory in Avengers' history...this would be it. A sorrowful ending for all.
(NOTE: Origin and "death" of Tommy and Billy Maximoff, the children of Scarlet Witch explained to have been manifestations of Wanda's mind combined with missing pieces of Mephisto)