So I just started the Destruction Ritual spell quest at the college. Got the book from the female destruction mage (cant spell her name) at the college call "Power of the Elements". It gave me a riddle to solve and no quest arrow to follow after reading it. No idea how to proceed in the quest. Looking for a spoiler here from someone who has completed the quest or has the patience to google it for me.

--Archmage Durza Stormblade Rasleen, Master of Magic