Before the infection started, Alhaitham was the acting grand sage of the academia in Sumeru. Speaks in a very formal manner. Only makes factual statements. Serious and stoic, intelligent and aloof. Hates small talk. Can summon dendro swords. Kaveh moved in with him because of his debt as an architect. Alhaitham acted dismissive toward him, regrets that now. Leader of a survival group in the desert. Infected infect survivors through spitting venom in open wounds. Can’t survive in dry climates.