Omalvus is a snail who loves to draw with his rainbow-coloured slime trail. He is very proud of his beautiful, brightly coloured pictures. His peaceful life is one day disrupted by the appearance of a mysterious brown slime that is ruining his colourful drawings. Each day he creates a new drawing and each day, when he is not looking, his drawing is destroyed. Oh no! He must find out what or who is responsible for this destruction. Join Omalvus on his read-aloud rhyming adventure as he learns the true cause of the strange brown slime.