Renowned astronomer Marmion gathers the Royal household to hisimpressive observatory in a transformed old fort to watch asolar eclipse. Rochefort along with The Musketeers escort thembut could never have predicted the twist in fate that ensuesand the impossible choices that must be made. Who is Marmionreally and what is his game? The Musketeers are forced into thefight of their lives with dramatic consequences. Will theyaccept Milady's help despite their loathing and mistrust ofher? It might be their only chance to save the King, Queen andthemselves.
