Exciting story about a nighttime train journey to Spain. Along the way, the train stops. Why are Mr. and Mrs. Sol acting so mysterious? For beginning readers at AVI M4. Exciting story about a nighttime train journey to Spain. Roel and his cousin Sam get to go to Spain with Grandpa and Grandma, by train, and at night. How fun! But then the train suddenly stops. Why are Mr. and Mrs. Sol acting so mysterious? For beginning readers at AVI M4. Grandpa and Grandma are taking the sleeper train to Spain. Roel gets to go with them. And his cousin Sam too. Two strange people get on board as well. They are Mr. and Mrs. Sol. At night, the train suddenly stops. How strange! What is going on?