This is easiest in quixote 2.
One way to do it is to override the _q_traverse()
method of the Directory that takes care of,
for example, /pics/.
The _q_traverse will get the argument
['zoo', 'bob', 'fred', 'kayaking', 'jim'].
You can just execute your search and return the page
directly from your _q_traverse().

There are other ways to do the same thing in quixote 2,
but this seems like the simplest.