Books with title Hedgehog's Secret

"In the summer evening, stars are blinking. Hedgehog strolls around while thinking. Before too long she'll go to sleepand into her dreams her treasure will creep.What is her treasure? What could it be?No one knows. It's not easy to see."Hedgehog is terribly busy. She's washing, she's cooking, she's cleaning. One by one, Elephant, Pig, Teddy, and Lottie stop by. They'd like to eat and play; they'd like attention! But for once, Hedgehog doesn't have time for them. At the end of the day the mystery is solved when Hedgehog introduces all her friends to her newborn treasure.