Four powerful Trustees have been defeated, and their magical Keys have been claimed, but Arthur Penhaligon's week is only getting worse. As the Rightful Heir to the House, Arthur has already faced unimaginable dangers, but the challenges of Friday might be his most difficult yet. Amidst a storm of trouble and rising chaos, Arthur receives a highly unexpected offer from the mysterious Lady Friday. Is this a golden opportunity to finally gain the upper hand, or is it a cunning trap designed to destroy him once and for all? Arthur must weigh his options carefully and act quickly before his enemies beat him to the prize. Step back into a spectacular universe of magic and mystery in this thrilling continuation of the epic fantasy adventure. With time running out, Arthur must rely on his courage and wits to survive the deadliest day of the week.