Grandma likes to entertain her grandchildren, twins Lenny and Liz, with time-traveling adventures. The Fourth of July is fast approaching so they will be joining the Boston Tea Party. Grandma has a magic hat and many costumes to help the twins get a firsthand look at colonial life with Ben Reed and his family. Differences in the clothes worn, the use of plumbing, the modes of transportation and how information was communicated are some of the fine points of living in colonial times. Six and seven-year-olds will enjoy having this piece of history read to them and eight-year-olds will be able to read it themselves. The author blends humor and historical detail in this second book of the Time-Traveling Twins series.