"Dead Man Talking" is just another LONG long-term quest that will not end until you complete the quest line of Ptah - the eighth god in Egypt. You can just IGNORE that quest. It will eventually resolve itself. It is not the cause of any issue you are experiencing.
If you are not getting new quests, there are a few possibilities. Sometimes it is simply that a quest giver was missed. Quest givers can usually be found in Luxor, or in the Temple of the god, or in the last mine of a god that you were in, or in Camp. Or sometimes the problem is that part of a quest is incomplete, like making milk, apple pies, or mushrooms in the kitchen, or giving a character lumber, tin, or coal. Check your Quest panel to see if there is something you need to do to finish a quest.
If you are not getting new quests, let us know the last location of a god that you completed. (not a Father quest, or a side quest). Then we can try to give more information.