Jusqu’au 30.9.2024, le code EBOOK20 donne droit à une réduction de 20% sur tous les e-books Stämpfli. Il suffit de saisir le code de réduction à la caisse dans le champ correspondant.
The second book in a new puzzle-adventure series takes readers on a thrilling space-themed mathematical quest in the company of Knutz, a STEAM whizz-kid, and canine super-inventor Boltz.
The second book in a new puzzle-adventure series takes readers on a thrilling space-themed mathematical quest in the company of Knutz, a STEAM whizz-kid, and canine super-inventor Boltz.