Galatea rewards Wizards and Thieves with the Deflect Magic skill, Barbarians with the Binding skill, Clerics with the Deep Trance skill, and Knights and Rangers with the Athletics skill. Everyone who has both learned the Rune Reading skill and fully explored the Runed Room will be given a large experience point reward as well. Everyone who has not done so will learn the Blast spell. You will not be able to ascend to higher levels until you have defeated Malcolm's Ghost, either by yourself or in a party.