"I am a sea monster so large I was mistaken for an island. I could drag entire ships beneath the waves. I was legend until giant squid proved something like me is real. What am I?"

Answer: The Kraken. The Kraken is a legendary sea monster from Scandinavian mythology — described as a colossal, island-sized tentacled creature. The legend is thought to be inspired by sightings of giant squid, which can reach over 10 metres in length.