Encourage the kids to finish their twin by filling in details eg. Two or three volunteers to help prepare props, supplies and display items and one to two helpers to assist with the program. You can dress in costumes, eg. The SRC participants can guess who you are and what story you are from. This can be done in one session or over the course of the summer.
Characters can be inside the various openings with clues or coded messages.
Children can add footprints later. Have black construction paper foot prints leading from the display and reading record mural to the program area. Prior to the beginning of the program, hand out copies of a stake-out map of the library with oversized question marks in specific areas, eg. The participants can name the areas. Attach a small safety or travel mirror to your display for kids to solve coded messages printed backwards.