Editors’ note: Texas Monthly Presents is a new docuseries airing on Texas PBS stations. Check your local listings or watch full episodes here. The third episode of Texas Monthly Presents ties together three stories that, on the surface, have very little to do with one another. But going beyond the surface—well, that’s precisely the point. Longtime Texas Monthly writer Katy Vine dives underground into a fascinating subculture of cavers. Barbecue editor Daniel Vaughn goes behind the counter of a barbecue joint in pursuit of a story about hope and renewal. And writer Forrest Wilder wades into the waters of an artesian spring under threat. Altogether, the episode highlights how important stories are waiting to be told if we only take the time to look.The full episode…