My Grandpa is a Mad Scientist

<p><strong>Lexile Level: 570 L Grade Level 3-7</strong></p><p></p><p>Gabe is on summer break after seventh grade and his mom is making him spend the vacation time with his reclusive grandpa from out west.</p><p></p><p>Luckily his cousin Jake will be there. Gabe had only met him once years ago but he couldn't remember much of him.</p><p></p><p>To Gabe's surprise he wasn't staying in a hovel but a lavish castle with dozens of guest rooms a full-sized theater a private tennis court and a detached garage with dozens of sports cars.</p><p></p><p>With plenty of things to do there wasn't time to cause any mischief that is until Gabe and Jake find out their grandfather has a hidden laboratory with all sorts of bizarre experiments.</p>