sentences:  The Khalif refuses to release Sinbad and Omar, but while they are incarcerated in the dungeon, Simon and Kristina give the ruler a private demonstration of Greek fire.As protection, Simon has entrusted the formula to Kristina, who can recite the instructions only while hypnotized.In front of the Khalif, Simon hypnotizes Kristina, who then gives her father directions for mixing the various bottled ingredients.