* One of those things that didn't immediately occur to me until I re-read ''Off Armageddon Reef.'' When Merlin gives Cayleb his katana, he tells him it's named ''Excalibur.'' The reference is obvious given that Merlin calls himself... well, Merlin. Only on re-reading the first chapters of the book though, did I realize that ''Excalibur'' was also the name of the ship Nimue Alban served on, making the name both a mythological reference ''and'' a CallBack.