Quest: Into the Unknown - Relax!
You only need to do 3/3 of the optional tasks to complete, not all of them. This is what I do for a fast completion.
Accept the daily quest from [npc=167455] in The Ring and enter the Unknown, t's the glowing mushroom to his right as you face him.
Enter The Root Cellar (presumably an inn). Interact with [npc=174362], the grub on the left as you port in and squeeze (left click) to obtain [item=183961].
Next go to [npc=174371] directly in front of you at the back of the room, standing by a cauldron. Open dialogue and select the option;
Can you make me something special?
then select;
Here's your gorm juice. This wont kill me, will it?
She makes you a drink, [item=183963], that goes directly to your inventory.
Task 1 completed.
You can select the other dialogue options to get a prompt for the other tasks but it is not necessary.
Go to your left when facing Mixy Mak to the musical instruments. Click first on the harp and then the drum (or whatever instruments are glowing). Don't move just wait for completion (it's a channelled action).
Task 2 complete.
Go to your left again to [npc=174365], open the dialogue and select the only option;
How can I help?
He asks you to select the most appropriate verse three times. The correct options in order are;
Its three maws agog?
then
Before his next quest?
and finally
Oh night fae in unity?
To exit just select the only option;
Knock 'em dead, champ.
Task 3 and quest complete. Now go and hand-in with Marasmius.