Luke and Professor Neptune

The book Lukas and Professor Neptune is about stars, alien planets, autism, and most of all about Lukas. He is nine years, two months and four days old, he likes astronomy and is in the third grade. To help him learn with the other children, his assistant Anetka helps him at school. But one day Anetka won't come to school! What now? The most adventurous day of Luke's life begins!