Clues on Four Legs (Sherdog Holmes #2)
(Pistas a cuatro Patas (Serie Perrock Holmes 2))

When mystery knocks at your door, call Sherdog, Sherdog Holmes.

Julia and Diego, the owners of Sherdog Holmes, find out that a boy has uncovered a cry for help inside a packet of sweets. The message only reads: «HELLP».

These are the facts: The victim is trapped. And has no idea how to spell.

These are the clues: What are so many penguins (who talk!) doing shut in a sweet factory?!

Sounds like a case for Sherdog Holmes.