Additional information
by Mikecrack (Author), Javier Jerez (Illustrator), Catalina Castillo (Illustrator)
Se puede saber por qué Exe lee ese libro a todas horas?
Mike y Akela no aguantan más la curiosidad y harán lo que sea para descubrir su secreto. Pero no hay manera... Exe está tan obsesionado con ocultarlo que hasta lo guarda en una caja fuerte bajo cuatro llaves.
Cada una de ellas se esconde tras un recorrido de dificilísimas pruebas que tendrán que superar si quieren abrirla. Exe no cree que Mike y Akela sean capaces de completar el reto... puedes echarles una mano?
Consigue todas las llaves y descubre el secreto mejor guardado de Exe!
ENGLISH DESCRIPTION
What's the deal with Exe reading that book all the time?
Mike and Akela can't hold back their curiosity anymore and will do whatever it takes to uncover his secret. But there's no way... Exe is so obsessed with hiding it that he's even locked it in a safe with four keys.
Each of these keys is hidden behind a series of incredibly difficult challenges that they'll need to overcome to open the safe. Exe doesn't think Mike and Akela can complete the challenge... can you give them a hand?
Collect all the keys and uncover Exe's best-kept secret!
