Offliner’s coin

Offliner’s coin is a special coin coming from the children's book Offliner (original Czech name is Oflajňák = somebody, who is offline). Book describes stories of the eight age boy named Petr who was robbed by an evil witch from a Offliner’s coin, without which he will never become a grown man. Peter is contacted by Offliner and the boy must to fulfill a few offline activities and get his Offliner’s coin back. Web page of the book: https://www.perkshop.cz/pro-deti/oflajnak (unfortunately, on