Magic Tree House Merlin Missions Books 21-24 by Mary Pope Osborne

Civil War on Sunday Revolutionary War on Wednesday Twister on Tuesday Earthquake in the Early Morning Description: Civil War on Sunday Cannon fire! That's what Jack and Annie hear when the Magic Tree House whisks them back to the time of the American Civil War. There they meet a famous nurse named Clara Barton and do their best to help wounded soldiers. It is their hardest journey in time yet--and the one that will make the most difference to their own lives! Revolutionary War on Wednesday When the Magic Tree House whisks Jack and Annie back to colonial times. General George Washington is about to lead his army in a sneak attack against their enemy. But now a terrible weather is making the great general question his plans. Can Jack and Annie keep history on track? The fate of the country rests in their hands! Twister on Tuesday An adventure to blow you away! That's what Jack and Annie get when the Magic Tree House whisks them back to the 1870s. They land on the prairie near a one-room schoolhouse, where they meet a teenage schoolteacher, some cool kids, and one big, scary bully. But the biggest and scariest thing is yet to come! Earthquake in the Early Morning An adventure that will shake you up! That's what Jack and Annie get when the Magic Tree House whisks them back to California in 1906. As soon as they arrive, the famous San Francisco earthquake hits the city. Can Jack and Annie save the day? Or will San Francisco be destroyed first?