Other books in the _Mercer Boys Series_

THE MERCER BOYS’ CRUISE IN THE LASSIE

THE MERCER BOYS AT WOODCREST

THE MERCER BOYS ON A TREASURE HUNT

THE MERCER BOYS’ MYSTERY CASE

THE MERCER BOYS WITH THE COAST GUARD

* * * * * *

[Illustration: _The mass of flame moved quickly down the hill._]

The Mercer Boys in the Ghost Patrol · 第 2 / 22 题