While docking at a Merithuran town , Mouse sang ironcraft to save his father from falling cargo .
At his request , Arram secretly taught Mouse to use ironcraft , enabling him to manipulate matter by his songs .
While docking at a Merithuran town , Mouse sang ironcraft to save Arram 's father from falling cargo .
At his request , Arram secretly taught Mouse to use ironcraft , enabling him to manipulate matter by his songs .