The Four Demigods

Silavnus and Sibil live on a post-apocolyptic earth, a once vibrant and beautiful world, now destroyed and run over by the virus mutation that has turned the world population into zombies. One day while scavenging for food and dodging zombies, Silvanus and Sibil accidentally fall through a portal to a magical world. Will Silvanus and Sibil be able to survive the four demigods in this new magical world? Can the mysterious wizard help them find another portal? Will they ever be able to find a way back home?