Dispatches from two lineages.

Long before Tom Brown Jr. founded the Tracker School, he was a boy following an old man through the Pine Barrens of New Jersey — an Apache elder named Stalking Wolf, who most people simply called Grandfather.

Stalking Wolf was a scout of the Southern Lipan Apache, born in the last years of the nineteenth century. He was trained in the way of the scout: tracking, survival, the way of the shaman, and a heightened form of awareness his people called Sensing Presence — a skill they considered essential to surviving both the land and the threat of other tribes, and later, the western invaders. Decades afterward, having left the reservation to travel and study wilderness survival across the Americas, he settled near the Pine Barrens and began quietly mentoring two boys: Tom Brown Jr. and his friend Rick.

For roughly a decade, Grandfather taught them not as a formal instructor but as an elder passing on a way of life. They tracked animals for hours at a time. They sat motionless until birds and deer forgot they were there. And they learned to sense a person's presence before they could see or hear them — a skill the tradition calls Sensing Presence, and one that sits at the center of Hidden Traditions, because a martial tradition on the opposite side of the world turns out to teach something remarkably similar.

"He said that if we try to figure out the mechanics of how Sensing Presence works, we will temporarily lose the ability to enter it."

Stalking Wolf never wrote a book of his own. He left no interviews, no scrolls, no institution bearing his name. Everything that survives of his teaching survives because a young boy in the Pine Barrens chose to carry it forward — and because, decades later, two more students are doing the same.

Grandfather Stalking Wolf mentored Tom Brown Jr. for roughly ten years in the New Jersey Pine Barrens, a stretch of woods most people drive past without a second look. That apprenticeship ended when Tom was seventeen, after Stalking Wolf died. What Tom did with what he'd been given is the reason this book exists at all.

In 1978, Tom founded the Tracker School on the same land where Grandfather had taught him. The school became the thing Stalking Wolf's own teaching never had a chance to become: an institution. Over the following decades, Tom authored eighteen books — among them The Tracker, Grandfather, and The Way of the Scout — and quietly built a second reputation few people knew about at first: law enforcement agencies called on him in more than six hundred cases to help track fleeing suspects, missing persons, and lost children, using the same skills Grandfather had once taught a boy for entirely different reasons.

Randy Walker Jr. and Rien de Rooij, co-authors of this book, were both students who came through that door — Randy for three decades, and Rien alongside him for the same three decades, on top of his own four decades inside Japan's Bujinkan. Two very different lineages, carried forward by the same two hands.

Dirt time — hours of direct, unmediated time outdoors — was, in Tom's own teaching, the only way to actually learn any of it. No book could substitute for it.

Tom Brown Jr. passed away on August 16, 2024, at seventy-four. The Tracker School he built continues to run the courses he designed, and dirt time is still, by his own design, where the real learning happens.

For most of his life, almost no one knew Toshitsugu Takamatsu came from a family of ninja. It was a secret his family kept for generations, one that only became public after his death in 1972.

Takamatsu was born in 1889 in Akashi, Japan, and began training as a child under Toda Shinryuken Masamitsu — a martial arts teacher who also happened to be his own grandfather. By thirteen, Takamatsu had mastered Shinden Fudo-ryū. Over the following years he absorbed a remarkable number of traditions from Toda and a second teacher, Ishitani Matsutarō: Togakure-ryū, Kotō-ryū, Gyokko-ryū, Gyokushin-ryū, Kumogakure-ryū, Takagi Yōshin-ryū, Kukishinden-ryū. Nine schools in total, each one a thread of a much older lineage.

As a young man, Takamatsu traveled through Manchuria and China, where — by his own and his students' accounts — he found himself in real, life-or-death fights. He earned the nickname Mōko no Tora, "the Mongolian Tiger." Later in life, he became a Tendai Buddhist priest and a painter, spending his mornings at the easel and his evenings turning in early, living by a quiet, disciplined rhythm that seems at odds with the fighter he'd once been.

The scholar Kacem Zoughari, who later translated and annotated a rare 1963 newspaper interview with Takamatsu for his book on the man, frames him as the last living bridge between a centuries-old, secretive tradition and the modern world that was only beginning to learn of it.

In his late twenties, a young man named Masaaki Hatsumi sought him out. For the next fifteen years, Hatsumi made the trip from Noda to Takamatsu's home in Nara almost every week — often overnight, often for a single day of training before turning back. A year before he died, Takamatsu told Hatsumi that he had taught him everything, and that his own debt to his teachers was repaid. He was 83 when he passed away in 1972, and it was only then that Hatsumi — and the wider world — began to understand the full weight of what had quietly been carried forward.

We think about Takamatsu often while writing this book, because his life is, in miniature, the whole argument we're making: a tradition of trained awareness, kept alive not through institutions or publicity, but through one person choosing to hand it to one other person, in person, over years. It's the same shape as Stalking Wolf teaching a young Tom Brown Jr. in the Pine Barrens. Different continent, different century, same act of transmission.

If Takamatsu Toshitsugu was the last keeper of a secret, Masaaki Hatsumi is the reason that secret didn't stay one.

Born in Noda, Japan, in 1931, Hatsumi started martial arts at seven years old, training with his father's wooden sword. By twenty he'd already earned a fourth-degree black belt in judo — rare for someone his age at the time — and had also studied karate, aikido, kendo, and Western boxing. He graduated from Meiji University, later studied medicine, and opened his own bonesetting clinic. By every account, he was restless, searching for something the sport-oriented martial arts of postwar Japan weren't giving him.

He found it in Takamatsu. Hatsumi was in his mid-twenties when he first sought him out, and has since said that meeting was the first time in his life he ever genuinely felt fear facing another person — despite years of training and street fights by that point. He trained under Takamatsu for the last fifteen years of the old master's life, absorbing all nine of his traditions. When Takamatsu died in 1972, he left Hatsumi the scrolls, the transmission, and the responsibility of continuing it.

Hatsumi could have kept it as quiet as his teacher had. Instead, he built a dojo in Noda and named it Bujinkan — "hall of the divine warrior" — in Takamatsu's honor, and then, in his fifties, started taking the training abroad. His first trip to the United States was in 1982. Over the next twenty-five years he traveled to more than fifty countries, teaching what had once survived through a single line of secret, person-to-person transmission.

A tradition kept secret is a tradition that eventually dies with its keeper. Hatsumi chose otherwise.

It's because of that choice that any of this book exists at all. Rien's own training traces directly back to Hatsumi — the same man, still by every account a working artist and calligrapher as much as a martial artist (the dragon-head painting he made for Rien in 2018 is one small example). Decades of letters, decades of training, all made possible because one man decided to open a door his own teacher had kept closed.

One aspect of these traditions is laid out clearly in the philosophy classes at the Tracker School, but stays more hidden behind a door in the Bujinkan: the concept of good versus evil. When you apply the concepts and techniques in this book to your daily life, you won't just be struck by the utter beauty of life, you'll also see how darkness abounds. The more sensitive you become to your surroundings, and to the sensations in your own body, the more you'll experience this. It's nothing to be worried about. Just something to be aware of.

Inside the Bujinkan the 5th Dan test, sometimes called the Godan test, has a reputation that precedes it, even among people who've never set foot in a dojo. The short version people repeat is that a student kneels, closes their eyes, and has to dodge a strike aimed at their head without being able to see it coming.

That description is accurate but it misses the point of what's actually being tested. The test isn't measuring reaction speed, and a blindfolded guess timed to the sound of movement would fail about as often as it would succeed. What the test is actually built to reveal is something closer to what Stalking Wolf was teaching Tom Brown Jr. in the New Jersey Pine Barrens around that same era, a kind of awareness that operates before conscious thought catches up.

Hatsumi has described the state a student needs to pass the test as Mushin, no mind, no thinking, just pure awareness. It isn't a state of hyper-alertness, it's closer to the opposite, a stillness where reaction doesn't need to be manufactured because attention was never fully gone in the first place.

Sensing a strike before it can be seen isn't a metaphor here, it's the literal design of the test.

It's this same territory, awareness that precedes conscious perception, that shows up on the other side of this book too, in the Apache scout's Critical Edge and the practice of Sensing Presence. Two traditions, developed continents apart, converging on the same doorway.