WHO SENT AMBER LEE AN ANONYMOUS LETTER?
Everyone loves the new teacher, Mr. Merlin. Mr. Merlin used to be a spy,
and he knows all about secret codes and the strange and gross ways the
police solve mysteries.
Now there's a mystery in their very own class -- someone sent Amber Lee
Johnson an anonymous letter. Noelle and Todd want to solve the mystery
before anyone else. But first they have to figure out Mr. Merlin's
clues. How can a bunch of envelopes tell them who sent the letter?