Supergirl TP Vol 01 the Killers of Krypton

Superman and Supergirl, the last two Kryptonians on Earth, have had their beliefs shattered. With new revelations about their home planetand the man who destroyed itSupergirl builds a star cruiser using whatever tech she can scrounge, and after receiving intel from Green Lantern, she blasts off into the cosmos with Rogol Zaars deadly axe to solve the mystery! Collects SUPERGIRL #21-26.