ℂℍ𝔸ℙ𝕋𝔼ℝ-𝟙

Klaus takes Hope away from New Orleans after learning about the new threats against him,
for years no one saw him or his daughter,

but then suddenly one day the entire original family along with the Kenner's show up at his door,
but gets shocked to learn what is behind it.

What happened there?
Where was Klaus keeping his daughter all these years?
What happens when Hope sees her family?
Who was helping Klaus all these years?