In UAB Nome, (just North of the Desheret Desert) go to the Camp of Qetesh & Retesh. Simply defeat the 2 War Elephants, they are both level 40 so be prepared! Make suer to level up your health, get some good abilities, weapons and prepare to dodge a lot! I was level 45 and was not so good at evading all of their attacks but still managed to defeat them without too much of a worry.
I created this video to help:
Hope this helps.