Your first order of buisness will be to find a ghostly chest/apparition chest that can appear within the three first rooms of the Sanctum of The Scaleborn. It can appear in the first "Mouth of the Sanctum" , the small room off to the left before the grate and Orate Chamber room off to the right.

Finding the chest you will start this quest and be ordered to kill four normal mobs as well as one named mob. (Note: This was changed and you now only need to kill either the named mob or his place holder.) These mobs will be in the Orate Chamber room off to the right of the Mouth of The Sanctum room.  You will need four Scaleborn Spiritualists and after that you will need to kill Orate Bozar or his place holder. After getting the updates you will have to again find the apparition chest/ghostly chest where you will end this quest recieving the Tome of Animatus.

You will have to examine the Tome of Animatus to get the next quest in the Claymore Quest line called Soul Survivor. There is no reward for completing this quest however there is a nice reward coming near the end of this mini quest line with the Shade of Blyze.