Doctor Who: The Sixth Doctor Adventures - Purity Unleashed

In a gripping adventure that transcends time and space, the Doctor and Mel embark on a quest to unravel the mysterious disappearance of marine biologist Hebe Harrison. With her research holding the key to a delicate balance within the universe, their mission quickly shifts from simple investigation to a race against time, involving unexpected allies and formidable foes. As they navigate through the complexities of parallel dimensions and perilous encounters, the duo discovers that the fabric of reality hangs in the balance.

With clever plotting and rich character development, this tale delves into the consequences of manipulation within the timelines. The Doctor must confront moral dilemmas as they face powerful adversaries seeking to exploit Hebe's work for their own gain. As the stakes rise and alliances are tested, the Doctor and Mel find themselves at the heart of a profound struggle that could change the course of history forever.