Greek Beasts and Heroes: The Sailor Snatchers 12

Meet the ghosts who prophesy 'great danger and great trouble', and those death singers - the Sirens - whose irresistible singing has lured so many sailors to their deaths. But perhaps the worst of all are Scylla - with six bright green heads, each on a long, snaky head, to crunch luckless sailors alive - and Charybdis, the blubbery monster that sucks entire ships to the ocean floor. But it's not all doom and gloom.