Shinobu Ohtaka Magi: The Labyrinth of Magic, Vol. 16

Deep within the desert lie the mysterious Dungeons, vast stores of riches there for the taking by anyone lucky enough to find them and brave enough to venture into the depths from where few have ever returned. Plucky young adventurer Aladdin means to find the Dungeons and their riches, but Aladdin may be just as mysterious as the treasures he seeks. Aladdin's studies at the Magnoshutatt Academy are going well, and he continues to advance. Among the upper-ranked students is another young sorcerer whose power seems to rival Aladdin's. The two become friends and continue their climb up Magnoshutatt's caste system. But the dark secret they discover among the downtrodden people of the city takes them into even more danger...