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Summary
Sirius Black has never met anyone quite like Isadora Castellan.
The mysterious transfer student from Durmstrang arrived at Hogwarts carrying too many secrets, too much confidence, and the entirely wrong kind of smile. She's impossible to read, impossible to intimidate, and somehow seems perfectly content walking straight into the middle of everyone else's lives.
Sirius doesn't trust her.
Unfortunately, the longer he watches her, the harder it becomes to figure out whether she's hiding something...
...or whether she's hiding everything.