During this season, Shadow had no clear memory of his mysterious past.

She initially shows little interest in them, however, and seems to be harboring a mysterious past.

His mysterious past is unclear and he never speaks a word.

An orphan with a mysterious past, but dedicated to his line of duty.

He was drawing a parallel with an event in his own mysterious past.

He has a mysterious past, and becomes a love interest for Sabine.

Nothing else could be learned about his mysterious past.

He has a mysterious past about which much is implied, but nothing explained.

The story is set in a remote English boarding school with a mysterious past.

He turns out to be one of the only people who knows about Capell's mysterious past.