What causes Odysseus interview with the dead so abruptly?

Odysseus's interview with the dead in the Underworld is abruptly interrupted by the arrival of the ghost of the prophet Tiresias. The spirits of the dead are drawn to Odysseus, eager to speak with him, but their conversations are cut short as Tiresias provides crucial prophecies about Odysseus's journey home. This shift highlights the urgency and importance of Tiresias's message, emphasizing that Odysseus must prioritize his quest and the challenges ahead. The sudden transition underscores the theme of fate and the influence of the supernatural in his journey.