Quest for the Lost Key of Protection

Clue #1: On the edge
Clue #2: Old and new
Clue #3: Aiming to defend
Clue #4: At one time without a home
Clue #5: Near the sunset
Clue #6: Life from the depths and from the heights
Clue #7: The sisterhood of Mary and Kate
Clue #8: As the crow flies, look for the green stripe
Clue #9: The shadow of the cross once fell at dusk.
Clue #10: An apostle of living light
Clue #11: “Children of the glorious dead, who for freedom fought and bled” -encompassed by