Snerdly the Poltergeist stole four items from Professor Dybendahl's office (a quill, a book, a key, and a Remembrall) - replacing each with a particularly high-quality herring. He deposited one of the stolen items in each of the four common rooms of the four houses. Professor Dybendahl went to retrieve them, going to each of the four common rooms in turn. Can you match each of the four objects with the Hogwarts common room in which Snerdly left it? And can you find the order in which Professor Dybendahl retrieved them?

1. At the time Professor Dybendahl retrieved the book, he'd already retrieved the Remembrall, but he hadn't yet gone to the Ravenclaw common room.
   
   
2. When Professor Dybendahl entered the Slytherin common room, he'd already retrieved the key, but had not yet been to the Gryffindor common room.

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