It's a very busy morning on Treacle Street, and Hettie is waiting at the bus stop on the way to her Invention Workshop. Hettie really hopes that the bus won't be late today - she MUST make it to the Workshop in time for the big reveal of her latest invention! Whoever can be in all these weird and wonderful vehicles? Lift the flaps to find out! Young readers will delight in the busyness and enticing detail of the vehicles on Treacle Street, filled with characters that we have come to know and love.