Colin Joins the Circus

How does Sammy save the day, when Colin loses the magic bookmark at the circus, and when they are all trapped in the lion's cage complete with lion? Who is haunted by the phantom skateboard? How does Colin turn a fearsome gang-leader into Mr. Wobbly Man? How does he save his family by going back to a witch-trial in the seventeenth century? What amazing discovery do Olivia and Colin make regarding their daughter, Baby Charlotte? Read on to find out . . .