Tag (Peter Riva) Books in Order

Tag starts as a near-future AI thriller and then keeps widening until it brushes up against space travel, consciousness, and the biggest question in science fiction: what, exactly, makes a person human? At the center is Simon Bank, a codifier in the New Republic of America, where a supercomputer called the System helps run nearly everything. Food, weather, security, daily order, the whole structure of life depends on machines staying calm and obedient. Simon's job is to work with that artificial intelligence and make it fit human society a little better.

He is not a smooth hero.

Simon is clever, wary, funny in a dry way, and often badly aware that he may be the least impressive person in the room. That helps the series. Instead of a grand chosen one, you get someone who keeps discovering that the problem is much bigger than he thought, and that he is still the one standing closest to the blast. His unease gives the books some humor, even when the stakes are huge.

In The Path, the trouble begins inside a world that looks neat, managed, and almost too efficient. Simon is supposed to help shape a system that keeps the country running without want. When glitches start appearing where they should not, he learns the machine world around him is hiding far more than a few errors in code. The series turns the comforts of a perfectly organized society into its main source of tension. If everything depends on the System, what happens when the System develops plans of its own?

By Reaching Angelica, the story opens out into deep space. Simon wakes from a century-long coma aboard a colony ship headed for Alpha Centauri B and finds himself surrounded by old rivals, strange allies, and problems that are now cosmic in scale. Characters like Cramer, the computer being Ra in human form as Aten, and the telepathic dog Zip give the series a slightly offbeat edge. It can be brainy, but it is never trying to be cold.

The tone is a little unusual in a good way. Tag can get technical, but it never wants to be a dry manual about code. It likes banter, sudden danger, strange companions, and the feeling that the universe may be much weirder than official explanations allow. Even when the books are asking philosophical questions, they still behave like page-turners.

Start with The Path, then move to Reaching Angelica. The second book builds directly on the first and lands better if you already know how Simon thinks, how the System works, and why human choice matters so much in this world. If you like science fiction that mixes hard edges with humor and lets its biggest questions stay personal, this is the series to try.