Full of magical code-breaking skills, non-stop action and a tech-savvy hero, this action-packed sequel is perfect for fans of Percy Jackson, Doctor Who and Alex Rider. Twelve year-old genius William Wenton is still getting used to his extraordinary talent for cracking codes, but when an ancient artefact mysteriously disappears from a museum in Oxford, William must gear up for his most dangerous adventure yet - against an enemy hell-bent on unleashing an ancient cryptoportal of untold power. From the quiet streets of Oxford to the dizzying heights of the Himalayas, this race-against-time adventure will push this young heros skills to the limit. ukryj opis