It's easy my Lord, almost a direct march following the halls.
At the first crossroads, go straight and to your right. Fret not my Lord, for if you go left by mistake, you will quickly see its a dead end.
Your second major choice is also your last, get this right and you are home free... About 2/3rds of your way through you will come to a point where you must choose the first or second right... Take the first right my Lord and I will be waiting for my reward at C.
Lord Oberon, I wish for you to succeed in this perilous maze. I have done research from a bird's eye view and I know which path will guarantee your arrival with minimal fatigue. The paths A and B will both leave you blocked and force you to retreat, unless you can dig through the walls, which I believe you could do good sir. If you take path C you will find that victory will ensue shortly. I am currently the newest member and a gift of 2000 sapphires from your majesty would be greatly appreciated. Good luck and god speed sir.