I want to know the answer to the following question:
Who consulted a witch before the battle of Pharsalus?
All the background I'm provided with is that "Lucan depicts Sextus Pompeius, the doomed son of Pompey the Great, as convinced "the gods of heaven knew too little" and awaiting the Battle of Pharsalus by consulting with the Thessalian witch Erichtho, who practices necromancy and inhabits deserted graves, feeding on rotting corpses.". Is that enough to answer the question?
Answer: yes