Crack the case with the world’s most famous detective! But before he became the great detective, who was young Sherlock Holmes? The sixth book in a series of mystery adventures featuring a teenage Sherlock.

Knife Edge is the sixth in the Young Sherlock Holmes series in which the iconic detective is reimagined as a brilliant, troubled and engaging teenager – creating unputdownable detective adventures that remain true to the spirit of the original books.

Something sinister is afoot in the house in the west of Ireland in which Sherlock is staying. There are frightened whisperings among the servants and the house's owners are clearly scared. But who – or what? – has terrified them so much that nobody will speak out? Young Sherlock must bring all his powers of deduction to unravelling his greatest mystery yet.

Another fast-paced, brilliantly plotted adventure as teenage Sherlock comes up against a fresh crop of sinister, clever criminals.

Sherlock Holmes. Think you know him? Think again.

Continue the investigative adventures with Andrew Lane's Stone Cold and Night Break.