The Reaper rule sheet says:
"When playing with the Warlock Quest Cards, when a character lands on the Warlock’s Cave space, that player chooses freely one of the available Warlock Quest Cards from among those available in the Warlock Quest Card deck, instead of rolling a die to determine which quest he is assigned."
The Frostmarch expansion rule sheet says:
" In the base game, characters who travel to the Warlock’s Cave may roll a die to receive one of six quests. When playing with the Warlock Quest Cards, players must draw the top card from the deck of available Warlock Quests instead of rolling a dieto determine which quest he is assigned"
I can´t find any clarification in the faq:s about this. Thanks!