Dragon in Captivity

This is an Apple Books audiobook narrated by a digital voice based on a human narrator.

Beelzebub, Dragon Master,  has been excluded from the mind of the young wizard, John Lewis. So, he does not know that the young wizard is armed with technology from 1,000 years in the future and that the young wizard intends to time-travel back 400 years to confirm that Excalibur is being held in Iteria. Unfortunately, a non-magical attack with a sword influences the space-time continuum when John Lewis is so badly injured that he loses his memory.

Finally. John Lewis recovers with the help of yet another girl cousin and creates copies of the sword, scabbard and Celtic ring.

On his return, the young wizard tells Beelzebub that he intends to free all of the dragons and gets his support.