sentences:  Asterix disguises Obelix as a legionary, and they enter the garrison to rescue the Druid, but are separated.Asterix joins Getafix in the dungeon, where the pair resist Detritus' demands to make the magic potion, until he tortures Idefix (Dogmatix).Detritus uses the potion to throw Caesar into a cell (locked in an iron mask), and takes command with an oblivious Obelix as his bodyguard.