The Empty Suit of Armour is a humorous story likely aimed at confident beginner readers, featuring a mystery or comical situation involving a suit of armour that is mysteriously empty or comes to life. Kaye Umansky is known for her funny, slightly silly writing style. The plot would involve a child or group of children trying to figure out the secret of the empty armour, leading to various slapstick situations and misunderstandings. The story is a lighthearted way to introduce mystery and encourages children to use their imagination and problem-solving skills.