The Amusement Park Mystery (The Boxcar Children Graphic Novels Series #10)

When the Aldens visit their cousins, they're in for a surprise-there's an amusement park nearby! It has everything they could ask for, with plenty of rides and games. But the children see strange lights coming from the closed park at night. And then a mysterious phone call warns them to stay away! Just what is going on at the amusement park?