"Motor Matt and the Ignition Regulator; or, The Development of the Spark of Friendship" is an exciting adventure book by the famous writer Stanley R. Matthews. In this book, the main character, a young engineer, Motor Matt, embarks on a dangerous journey, during which he will have to use all his inventions and engineering skills to overcome numerous obstacles. Will he be able to solve the puzzle of the speed controller and strengthen his friendship with his friends at the same time? This exciting book is full of adventure, suspense and interesting inventions. "Motor Matt and the starter regulator; or, The development of the spark of friendship" will not leave indifferent lovers of fascinating literature and inventive stories.