Baby-Sitters Little Sister Three-Book Collection

"Join Karen Brewer on her adventures in Stoneybrook! In Karen's Witch, she is determined to prove that her neighbor Mrs. Porter is a witch named Morbidda Destiny. In Karen's Roller Skates, she breaks her wrist while trying out some tricks on her new roller skates and looks for someone famous to sign her cast. And in Karen's Worst Day, she tries everything to make a terrible day better. With the help of her family and friends, Karen can get through anything!"--back of cover.