The trio and the secret of the fortress. Adventure book. Put away your cell phones!

The children would not have guessed that it could be so exciting at grandma's, especially without a cell phone and in the suburbs.... A bright adventure book for children aged 9-13. Dive into the summer vibe, excitement and pancake roads! Ulla Welin and beloved children's author Harri István Mäki have baked a summer adventure in which the city grandma's house and city vacation shine. Humorous drawings accompany the reading experience. Hardcover, 186 pages, easy to read. Cheers to grandmas, treasure hunts and summer vacations. Anything can happen, wherever you are!