Time to read. Level 2, Reading with help

The Alden children and their grandfather are hiking down from Flat Top when a rockslide reveals a cave with a big secret.

Four orphaned children, afraid to go live with their grandfather, set up housekeeping in an abandoned boxcar and are doing fine until one of them becomes ill.

Four orphaned children, afraid to go live with their grandfather, set up housekeeping in an abandoned boxcar and are doing fine until one of them becomes ill.

"Years ago, a man disappeared from the yellow house on Surprise Island. Why? The Aldens have found a clue to the mystery!"--Publisher.

Henry, Jessie, Violet and Benny share a mysterious island for the summer with their grandfather.