When docking at a Merithuran town , Darrow used iron chantment to save his father from being crushed by falling cargo .
Darrow was taught the basics of iron chantment from a crew member , Arram , who warned him to keep this power secret .
When docking at a Merithuran town , Darrow used iron chantment to save Darrow 's father from being crushed by falling cargo .
Darrow was taught the basics of iron chantment from a crew member , Arram , who warned him to keep this power secret .