 Nevertheless, Caskey found the Middle Helladic people to be the direct ancestors of the Myceneans and later Greeks.Although scholars today agree that the Mycenean Greeks descend from the "Minyans" of the Middle Helladic period, they question Caskey's suggestion that (proto-Greek) Indo-European invaders destroyed Early Helladic II settlements throughout Greece.In fact, the layers of destruction Caskey found at Lerna and Tiryns were ultimately attributed to fire.