Cassandra Clare said this quote

Every time they saw him, they recognized him and knew him and expected things of him. And every time he came up blank. It was like watching someone digging where they knew they'd buried something precious, digging and digging and realizing that whatever it was--was gone. But they kept digging just the same, because the idea of losing it was so terrible and because maybe.Maybe.He was that lost treasure. He was that maybe. And he hated it. That was the secret he was trying to keep from them, the one he was always fearing he would betray.