he was useless at learning to pronounce words the way the hibernians pronounced them - the hibernians being the bitterest enemies of the kingdom of avallonia - but if they could teach luke how to pronounce words the way an ally of the hibernians , the krull , pronounced them , then luke could masquerade as a krull refugee , and hence the hibernians would admit him into the walled city which the warrior girls were intent on conquering , as the hibernian policy was to aid krull refugees .