Damn Cassia! She even tore apart my first published novel, Subway Hitchhikers.

A lot had happened in the nearly three decades since the book was first published – and even more since it was first conceived in 1973. Gee, that’s more than a half a century.

As I came back to the story after the release of What’s Left, my first task was to bring the tale more in line with the rest of the series, starting with the name of the lead character. Kenzie was an advance over the hippie-era Duma Luma, which rather echoed Wavy Gravy of Woodstock renown. His earlier legacy of being a lama reincarnated in Iowa was also downplayed if not entirely erased. Besides, there had been reports of such things actually happening since my book was first published. I have no idea how they turned out, either.

Another big job involved changing the original structure of short present-tense chapters flashing against past-tense ones, like subway trains passing in opposite directions. It was a creative touch but quickly confused the reader. A more conventional chronological-order storyline took its place.

That was accompanied by a new plot based on Kenzie’s monthly trips down to Manhattan to study with his Tibetan Buddhist guru in a tenement on the Lower East Side. That development added a handful of other devotees to the characters and realigned any who had previously existed.

Some of the Tibetan details now reflected tales I had heard from a more recent friend who was studying to become a Buddhist nun. Never mind that her experiences came decades after his or that there might not have been a Rinpoche residing anywhere near the Big Apple. Rival yogis, however, were plentiful.

Tibetans by the early 21^st century? Our favorite dining option in Manchester, New Hampshire, was a Nepali restaurant that featured momos, a steamed dumpling staple in Tibet, too. The owners and staff were quite honored when an authentic Buddhist Rinpoche dropped in and approved of their dishes.

My, I have lived in a changing world. When’s the last time you even saw a subway token, by the way?

The freewheeling hippie-era fantasies of my book were soon followed by some creepy downsides. Hitchhiking out on the open road had turned sinister. Subway surfers, seeking the thrill of riding atop the cars in the tunnels and on the elevated lines above the street, were being decapitated and worse or worse by immovable objects in their trajectory. And the onset of homelessness during the Reagan years created whole villages surviving underground, as Jennifer Toth reported in her book The Mole People: Life in the tunnels under New York City, which was published just four years after my novel.

In addition, Long Island Newsday had assigned a columnist, Jim Dwyer, to its new subways beat, leading to a nonfiction book, Subway Lives: 24 Hours in the Life of the New York Subways, which came out only a year after mine. Now that’s some tough competition. No wonder I didn’t hear from him after sending him a comp copy for review when my book came off the press.

By that time, though, I was living an hour-plus north of Boston and entering a time of my life when I’d be riding its MBTA trains about once a week – perhaps a thousand fares one way and back with girlfriends and later family on my visits. Familiarity with underground mass transit hasn’t lessened my fascination.

Still, since Subway Hitchhikers had been about hippies, I had to admit they had largely fallen into disrepute or self-denial. But that’s not how the book stands now, something that’s reflected in its current title, Subway Visions; Along the tubes to nirvana.

As for today? Here I was, with my fascination with subway systems, asking my favorite lifeguard about her experiences in Boston during her freshman year of college. She must have been taking the cute little cars of the Green Line, right?

Instead, she emphatically told me how disgusting they are, miserable on hot days and packed at peak hours – and, especially, the fellow passenger, an utter stranger, who puked on her feet in sandals.

I didn’t dare show her my book after that.