内容简介：
Will Mr. Pin survive a "case" of bad chocolate? Can priceless dinosaur eggs be found? And just who is Mort Chisel? In a second story, an opera conductor with a mysterious name disappears in a cloud of blue smoke. "Rave Reviews for Mr. Pin Books: " "Two more neatly plotted adventures of the penguin detective . staccato, deadpan delivery in whimsical parody of Dashiell Hammett . genuinely funny, brief mysteries."-Kirkus An IRA/CBC Children's Choice "Kids will like this penguin detective . and will cheer him on."-ALA Booklist "An inviting, non-threatening, easy chapter book."-School Library Journal