Liddy Miller's father, a geologist, is always talking about volcanoes when Liddy is 14, she witnesses a volcanic eruption firsthand while camping with her parents near Mount St. Helens. Written at ability level grades 1-3, interest grade level 5-12, with a Lexile Level of 600 and a Guided Reading Level of M, in three formats, Computer Book, Audio Book and Paperback Book.