Hot on the heels of one adventure comes another: Martin's sister Beth is reported as having died in Spain, so Kat and Pepper accompany Martin to the large, rambling house in which she perished.But why is host Vincenzio behaving so strangely? What is making the unearthly screeching sounds late at night? And what is the secret of the mazed garden, complete with ancient standing stones? As the incongruous and unfindable clock tower ticks away the seconds,...