Adel's prison is not correct, whether you meant it as an answer for the riddle or the second line.
I don't see what could be related to Esthar and the Ragnarok.
Again don't look for connections there. It's close to impossible to find the key to the first paragraph from the first paragraph. Either you'll have to solve the whole first paragraph, and then look for the key, or you'll have to figure out what the three other paragraphs wants you to do with the first, and then solve the riddle from that.

X-ATM092 is correct for the second line! Good job.