Do you remember, the night of the battle on Valentine's ship, when I needed some of your strength?" "Do you need it again now?" Alec said. "Because you can have it." "I always need your strength, Alec," Magnus said, and closed his eyes as their intertwined fingers began to shine, as if between them they held the light of a star.
Cassandra Clare: The Mortal Instruments Series (5 books) (ed. Simon and Schuster, 2012) - ISBN: 9781442481015