Odd Language #18: Which Behind?

From Searching for Dragons by Patricia C. Wrede, ISBN-13: 978-0-15-200898-7, p. 89: “Were the wizards behind the mysterious burned area Mendanbar had found?”

The issue: multiple.

  1. “behind” could be indicating the physical position of the wizards.
  2. Were the wizards behind (as in involved in) the burning of the burned area?
  3. The whole quote could have been a clause indentifying the wizards exactly instead of being a full sentence. For example, it could have continued “… anywhere near here?”

Point 2 is the intended meaning.