In reading order
The Blue Knights Quest to America
A.W.J. Pilgrim
The Blue Knights and the Sea Necklace
A.W.J. Pilgrim
The Blue Knights and the Egyptian Crystal (The Blue Knights of the Realm Book 4)
A.W.J. Pilgrim
The Blue Knights and the Sunflower Oranges A Short Book (The Blue Knights of the Realm 5)
A.W.J. Pilgrim