Following Caspian X 's visit , the Lone Islands were ruled for him by Duke Bern .
Prior to being reclaimed by Caspian , they were overseen by Gumpas , and were a great center of the slave trade .
Following Caspian   's visit , the Lone Islands were ruled for him by Duke Bern .
Prior to being reclaimed by Caspian , they were overseen by Gumpas , and were a great center of the slave trade .