Durane uno de sus paseos, Celestina pierde a Simeón, su precioso pingüino de tela. ¡Qué pena! Ernesto le regala todos los peluches que encuentra, pero Celestina sólo quiere a Simeón.
Monique Martin, alias Gabrielle Vincent, was a writer and illustrator of children's books from Belgium. She was born in Brussels on 9 September 1928, and died there on 24 September 2000. Her nom de plume is derived from the first names of her grandparents, Gabrielle and Vincent.She worked as a painter of water color before beginning a career in the 1980s as an illustrator with the series Ernest et Célestine, adapted for cinema in 2012..