Liam and Victoria take a deep breath in a new home after their non-stop flights of escape and rescue in the city of St. Louis. Grandma Marty, exhausted beyond words, finally reaches a place she can rest and recuperate. Cairo, Illinois is the fortified refuge they've been hoping for.

But Liam pledged to a dying man he would document the destruction of the world. He's inspired to write a tell-all book. It would be his way of recording for the history books who was responsible for creating the zombies and unleashing them upon mankind. To do that, he needs to go back outside the wire of safety.

Liam and Victoria head upriver to the one place they know holds clues to the zombie plague: a deep, dark pit mine. Their plans are complicated by a young woman Liam rescued on his final flight from St. Louis. She wants to accompany them on the journey north. At first she appears harmless, but as they reach the mine, and find who and what's inside, her loyalties become more and more suspect.

Grandma, unsure of her own mental state, believes she's seen the strange girl before. In her dreams.

Last Fight of the Valkyries is the action-filled fourth installment of E. E. Isherwood’s hit post-apocalyptic series Sirens of the Zombie Apocalypse. If you like to watch society collapse, zombie hordes bear down on the heroes, and skin-of-teeth escapes, you won’t be able to put down this awesome read!