The Ruined Temple is one of the small dungeons located in the Kurast Bazaar. Though according to the quest log, Lam Esen's Tome can be found in any of the dungeons, it will actually always spawn inside the Ruined Temple. This temple, like all others, can be accessed by activating a set of stairs that drop down. Inside you will find some of the few Corrupt Rogues found outside of Act I, except when on Nightmare and Hell Difficulties during Act V, along with an assortment of other monsters, including, but not limited to, Night Lord and Wailing Beasts.