Fate, Deepest Level?

I,ve been playing it for several months,and have gotten downto about level 117. i,m not sure how faar down it goes,or i it just keeps going down untill you retire,or what.i get a little bord with it,because it has gotten so hard,and all,so i starte a new characture,and she,s at level 7 now. the only way i can get through the deepest levels is to call the strongest creatures i have and it lets you summon 6 and turne my pet permanently intoa huge spier,and you go in with our troup,lead a couple monsters back into a small tunnel and fight them as they try to get past your monsters,while useing a spell to regain health. it gets super hard though.