Immortal Great Souls

Start this one for the power system and the climb out of hell, and start it on audio. Immortal Great Souls is a cultivation-flavored progression set in Bastion, a mile-wide rotating fortress-city clinging to life at the edge of a ten-layer hell, where immortal warriors called Great Souls die, lose their memories, and have to claw back up the ranks all over again. It is one of the few progression series that gets better with every book, and the dense opening is doing more work than it first looks: you assemble the world in your head at exactly the pace Scorio does, because he wakes into it with nothing.

The premise sells itself. Scorio wakes with no memory, learns he was once Bastion's legendary defender, gets betrayed and sentenced to die, and vows to return and reclaim what was taken. That is the back-cover hook, not a spoiler. What it does not tell you is how much the respawn mechanic shapes the whole engine. A Great Soul who dies starts at the bottom again, memories gone, rank gone. Every gain is held on loan against the next death, and that single rule gives the climb a weight most progression fantasy never reaches for.

The system is the reason to be here

The rank ladder is fire and ash all the way down. Char, then Cinder, then Emberling, then Tomb Spark, each tier unlocking specific infernal abilities rather than a letter grade and a bigger number. Mana quality matters more than mana quantity, which means a careful Great Soul can beat a stronger one, and the powers are stitched into the setting's mythology instead of bolted on top of it. It earns the Cradle comparison the community keeps making, with a hint of cultivation philosophy in how breakthroughs are framed as understanding rather than grinding.

What I kept circling back to is the cost. Every rung Scorio takes is paid for in a currency the setting makes brutal: he can lose it all in a single death and wake up a beginner. The series understands that immortality without memory is closer to a curse than a gift, and it lets that idea do real work. The progression is the engine, but the philosophy underneath it, what does it mean to climb the same mountain forever, is the thing that lingers.

The found family is the heart

Scorio carries the story alone for a while, then the cast fills in around him, and that is where the books grow up. Naomi anchors an ensemble that deepens noticeably from book to book, and a stretch in the third volume set among a band of soldiers drew comparisons to Band of Brothers for good reason. The camaraderie is earned through shared training and shared dying, and by book three I cared about these people in a way book one had not yet asked of me.

The growth is real in the prose too. Goodreads scores climb with each volume, and that pattern matches my own read: the writing tightens and a series that already had a strong foundation becomes one of the more confident progression runs going. A handful of editing roughness, repeated words in battle scenes, the odd typo, surfaces in the middle books. It is the kind of thing a careful copyedit would catch, and it never derailed me, but the community noticed it and so did I.

Why the dense open works

Book 1, Bastion, runs 829 pages, and a lot of those early pages are spent laying Bastion out brick by brick. I want to push back on the common read that this is bloat. Scorio wakes with no memory of any of it, and the book lets you learn the fortress-city, the ranks, the Pit, and the politics at his shoulder, in step with him, as he works out where he is and what he has lost. That is the device doing exactly what it should. The disorientation is the point, and by the time the world clicks into focus, it has clicked for both of you at once. I would not trim it. Go in expecting a build rather than a sprint and the density reads as patience, the slow assembly of a place you will spend 117 hours inside.

The honest caveat is smaller and shows up well inside each book. Each volume tends to open at a gather and close at a sprint, and once or twice the back half moves so fast a thread I wanted more from gets folded up quickly. Scorio is the other thing to know going in. He is impulsive and stubborn, and his early-book choices made me wince more than once. Whether that reads as authentic or aggravating will come down to your patience for a protagonist who learns the hard way, every book, by choice.

The audio is the way in, full stop

Nick Podehl narrates all four books, and his performance is the single most consistent praise the series gets. He is one of the best in the genre, and he gives the long worldbuilding stretches a momentum on the page that they reward in audio, giving Scorio and the ensemble distinct, settled voices and reading the infernal combat with real menace. The full run is roughly 117 hours across the four books. If the page count of book 1 gives you pause, the audiobook is the easiest way in, and it is the format I would point you to first.

Where to read or listen: Kindle and Kindle Unlimited for the ebooks, Audible for the Podehl narration, Apple Books for both.

The scoring, with reasons. Progression earns a 9 because the fire-ranked system is creative, the respawn mechanic gives every gain a real cost, and the climb means something. Narration takes a 10 on Podehl's full-series performance. Story sits at 8 for a hell-world premise that pays off the patient build and an arc that improves as it goes. Characters land at 8, lifted by the found-family ensemble. Prose is a 7, confident from the start and tightening further across the run, held just short of an 8 by the repeated words and typos that surface in the middle books. For a reader who wants a slow-burn climb with weight, a power system you have not seen before, and a narrator who never lets you down, this is worth the 117 hours.