Into Eternity by Richard M. Ankers

Queen Serena and her allies have fled the massacre, taking Princess Linka with them.

For Jean, it's heartbreak; for his friends, far worse. Leaving the Arctic ice behind, Jean and the others must come to terms with their losses, as they close in on the Baltic home of the hated Duke Gorgon.

As the lies around him unravel, Jean marches from one infuriating revelation to another. Finally, he must do what he's never done before: place his trust in others.

For only at the end of all things, as the sun dies and Shangri-La falls, will Jean know what it means to step into eternity.