relative paths break?

[Pomax]

I'm using the following test code, and am getting an interesting error.

var hook = require('node-hook');
function preprocess(source, filename) {
  return source;
}
['js','jsx'].forEach(function(ext) { hook.hook('.' + ext, preprocess); });

Pretty straight-forward pass-through processing, the expectation is that this, of course, does nothing. Instead, it causes and error on the following line later in the same file (line 19 in the file) :

...
var RouteSet = require('../lib/site/routes');
...

Claiming:

module.js:328
    throw err;
    ^

Error: Cannot find module '../lib/site/routes'
    at Function.Module._resolveFilename (module.js:326:15)
    at Function.Module._load (module.js:277:25)
    at Module.require (module.js:354:17)
    at require (internal/module.js:12:17)
    at Object.<anonymous> (J:\Junctions\Users\Mike\Documents\Git projects\projects\BezierInfo-2\pages\test.js:19:16)
    at Module._compile (module.js:398:26)
    at Object.Module._extensions..js (module.js:405:10)
    at Module.load (module.js:344:32)
    at Function.Module._load (module.js:301:12)
    at Function.Module.runMain (module.js:430:10)

Without node-hook, this works just fine, it's just a relative file location, but with node-hook, things no longer work for relative requirements... I tried to change it to ../lib/sites/routes.js because maybe the automatic extension from node's site isn't kicking in, but that just gives the same error:

module.js:328
    throw err;
    ^

Error: Cannot find module '../lib/site/routes.js'
    at Function.Module._resolveFilename (module.js:326:15)
    at Function.Module._load (module.js:277:25)
    at Module.require (module.js:354:17)
    at require (internal/module.js:12:17)
    at Object.<anonymous> (J:\Junctions\Users\Mike\Documents\Git projects\projects\BezierInfo-2\pages\test.js:19:16)
    at Module._compile (module.js:398:26)
    at Object.Module._extensions..js (module.js:405:10)
    at Module.load (module.js:344:32)
    at Function.Module._load (module.js:301:12)
    at Function.Module.runMain (module.js:430:10)