The way to the North (sequel to "The way to Gondor")

This is the second part of my story "The way to Gondor". I highly recommend reading the first part before this, but it is also possible to start with this one.

Aragorn and Legolas have lived in Minas Tirith for many years. Their children have almost grown up and peace dominates the lives of the people of Gondor. But a shadow draws near their idyll, the shadow of mortality. Once upon a time, lord Elrond offered a solution to this problem, but is it really true or is it just a tale? The kings decide to find out and start a new journey, as adventurous as the one they made years ago with the Fellowship. Follow them to the very North of Middle-Earth, where they encounter what is customarily called fate!