Mark Tufo; John O'Brien

Author Information
Mark Tufo; John O'Brien's Latest Book

Newest Release

  • Bibliography:
    8 Books (1 Series)
  • First Book:
    August 2014
  • Latest Book:
    November 2020
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Full Series List in Order

A Shrouded World

1 - Whistlers (Aug-2014)
2 - Atlantis (Jul-2015)
3 - Convergence (Dec-2017)
4 - Valhalla (Oct-2018)
5 - Asabron (Dec-2019)
6 - Bitfrost (Mar-2020)
7 - Hvergelmir (Jun-2020)
8 - Asgard (Nov-2020)

Books in Order: 8 titles

The book list is sorted in publication date order - newest first. You can sort the list by clicking on the Sort button. To see a simple list or a cover view list, click on the icons below.

  • Asgard

    A Shrouded World - 8

    In the final chapter of the A Shrouded World saga, Jack, Trip and Mike have brought the fight to the Whistlers’ terrifying homeworld. With the help of some unexpected allies, the crew must finally find a way to stop the enemy before they can te...

  • Hvergelmir

    A Shrouded World - 7

    Fleeing from overseers and whistlers alike, the unlikely group of dimension travelers stumble upon an ancient structure buried under eons of sand. Within, they discover old pathways that send them on an even more incredible journey. There, they disco...

  • Bitfrost

    A Shrouded World - 6

    A cosmic noose tightens around our heroes'' necks as, once again, they are tasked to fight a war not their own. Their every move is watched, their every action thwarted, yet failure here will seal the fate of countless billions to something worse ...

  • Asabron

    A Shrouded World - 5

    Our heroes have gone their separate ways in an effort to save Trip and unify their fight against the Overseers who have an evil plot to take over not only this world but all worlds. Mike asks for and receives help but not in any way he could have pre...

  • Valhalla

    A Shrouded World - 4

    In this explosive fourth installment of the popular A Shrouded World Series, Jack is seemingly back from the dead. Mike and Trip are in a desperate bid to help their friend before he falls victim to whatever is plaguing the inhabitants of Valhalla. N...

  • Convergence

    A Shrouded World - 3

    Having survived Atlantis, the town of Indian Hill beckons. As Mike and Trip make their way toward Indian Hill and are in search of some much needed answers, Jack is fast on their heels. It is a dangerous journey fraught with all manner of creatures...

  • Atlantis

    A Shrouded World - 2

    Jack, Mike and Trip were ripped from their loved ones and thrown into a dangerous world they know nothing about, relentlessly pursued by Night Runners, Zombies and a terrifying new creature known only as Whistlers. Like their own worlds, civilization...

  • Whistlers

    A Shrouded World - 1

    When two worlds collide... Jack Walker and Michael Talbot come from two worlds; the same, yet different. They both find themselves transported into an alien one, where things aren't as they seem. While it appears similar to the ones they come from, t...



Frequently Asked Questions (FAQ)

Mark Tufo; John O'Brien has published 8 books.

Mark Tufo; John O'Brien does not have a new book coming out soon. The latest book, Asgard, was published in November 2020.

The first book by Mark Tufo; John O'Brien, Whistlers, was published in August 2014.

Yes. Mark Tufo; John O'Brien has 1 series.
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