 Who is Teena and what role does she play in Chapter one and chapter two?
19 Christina Ross—whom everybody called Teena—lived at the far end of the block. 20 Eddie went inside and followed Teena to the kitchen. They had been ever since Eddie’s family had moved to Oceanview and his father had become head of the college’s atomic-science department. Teena’s father was chief engineer for the Acme Aviation Company, one of the coast town’s largest manufacturing concerns. 22 “Oh, yes, it’s fun, Mother,” Teena replied, wrapping wax paper around a sandwich. They worked a while on a new jigsaw puzzle Teena had received on a recent birthday. The main information was in the evening Globe , which Eddie rushed out to get as soon as he heard it plop onto the front porch.
 Teena is Eddie’s friend and neighbor. She accompanies him on a prospecting hike, where they don’t find any trace of radioactivity but still enjoy a lunch together.
 Teena is Eddie’s friend and neighbor. She accompanies Eddie on a hike through the hills behind the college, where he teaches her all about isotopes.  Teena is Eddie’s friend and neighbor. She accompanies him on a prospecting hike, where they don’t find any trace of radioactivity but still enjoy a lunch together.  Teena is Eddie’s friend and neighbor. She accompanies Eddie to Cedar Point, where they are looking for traces of radioactivity.  Teena is Eddie’s friend and neighbor. She accompanies Eddie to Cedar Point, where they eat sandwiches and prospect for radioactivity.