How do I draw from, search, and discard to the double-sided Spell and Condition decks?

Question

Accepted Answer

Draw or search from the bottom so the backs stay unseen, taking the first card that matches the required name or trait. Discarded or used cards are shuffled straight back into their own deck; there is no discard pile.

Eldritch Horror

How do I draw from, search, and discard to the double-sided Spell and Condition decks?