How did holmes know his client was the king , and not a count acting on behalf of a wealthy client?

Crash Landing on you has 16 episodes.

Explanation:

Rise of the Guardians. ... First Plot Point: Upon bringing Jack Frost to North's lair in the North Pole, the Guardians are dismayed to learn Jack has no interest in joining their team as a Guardian.

Climax: After unlocking his memories with the teeth encased in one of Toothiana’s stolen tooth cases, Jack learns he died saving the life of his younger sister by using fun to ease tension and distract her from fear. Inspired, Jack fixes his staff and travels to the home of Jamie Bennet, who is on the verge of losing hope in Bunnymund. Jack renews Jamie’s belief in the Guardians and himself, and assembles the Guardians and a handful of Jamie’s friends to battle Pitch and his army.