Also, not to double post but
[sblock=knowledge dungeoneering DC 17] The Ogre has been corrupted and turned into an abberation. This fits the pattern of ancient abberrations called kaorti,which were used as a food source for bigger evils, like illithids, beholders, and even daelkyr on occasion. It finally makes sense as these resin covered abominations fit the vague descriptions you have gleaned in the past. If you beat the check by 5 or more tell me what additional trait you would like to know about them[/sblock]