ap·ro·pos

–adv.
1. fitting; at the right time; to the purpose; opportunely.
2. by the way.
–adj.
3. opportune; pertinent.

lab·y·rinth

– noun
1. a maze or intricate combination of paths or passages.
2. a complicated or tortuous arrangement.
3. any confusing state of things or events; a bewildering complex.