The protagonist wakes up inside a giant dimension-crossing illithid (mind flayer) flying ship. They are infected with a parasitic tadpole that enthralls and transforms people into illithids; however, the transformation does not happen, and the ship comes under attack from githyanki warriors riding red dragons. The mind flayer crew teleports the ship to the Nine Hells and are attacked by an army of Devils. The protagonist is freed during the fighting and steers the damaged ship to Faerûn, where it crashes. They encounter other survivors of the wreck, all likewise implanted with tadpoles.