El tesoro de Barbazul

Vitamins for the brain is a new collection of activities specifically designed to keep the brain skills of older people in optimal condition. Each of the three copies brings exercises, riddles and specific activities to develop memory, attention and concentration or to motivate reasoning.

Nine-year-old Josefina, the youngest of four sisters living in New Mexico in 1824, tries to help run the household after her mother dies.

The day before his birthday, Nino opens the closet and finds a huge present. In spite of his curiosity, he can't figure out what it is. When Nino opens the present the next morning, it seems boring at first, but he slowly discovers all of the surprises it holds within.

"Mitad hada, mitad vampiro, ¡y totalmente única! Esta noche..., ¡Isadora bailará! Isadora Moon es especial porque es diferente. Su mamá es un hada, su papá un vampiro y ella tiene un poquito de los dos. Así que, cuando toda la familia va a acampar junto al mar, suceden algunas cosas que no son demasiado normales... Isadora ha sido invitada al baile anual de vampiros, pero ella hace ballet como las hadas. Tendrá que preparar el baile de vampiros, ¡pero no quiere renunciar a ser en parte un hada! Cuando se levante el telón..., ¿se atreverá Isadora a ser distinta a los demás? Con...

When Aunt Abigaíl reports on research into the human genome, Simón, Lucas, Isabel, and their friend Juana become involved in investigating the theft of a racehorse, terrorism, sabotage, and a very suspicious hospital.