conjuries, congeries

Conjuries or conjuries is the plural ( more then one ) of "conjury", meaning an act of magic, such as a spell or incantation, particularly one used to invoke a spirit, or the devil himself--
The magician promised to make them all wealthy with his conjuries.
He claimed that his conjuries could produce spirits that would do his bidding.

Congeries or congeries ( singular, but always with an "s" ) means an eels' nest, or, figuratively, a truly tangled mess, a heap or pile--
There in the harbor, they stumbled upon an actual congeries, a tangled family of eels.
They had to make their way through a congeries of forms and red tape before they could collect their package.

Now that you know that, you can say--
"To prove to them that conjuries are meaningless, he had to unravel a congeries of beliefs and superstitions."

Note--"conger" is a large salt-water eel--
We have a nice conger for dinner; maybe I'll fry it.
Note # 2--"conjure" means to invoke with a spell or incantation, or to produce through magic, literally or figuratively--
He's a culinary genius--he can conjure up dinner out of nearly anything.