Scholastic Press,, 2015.
585 pages ; 22 cm

Houghton Mifflin Harcourt,, [2013]
329 pages ; 21 cm

Scholastic,, [1998]
184 pages : illustrations, maps ; 20 cm.

Millbrook Press,, [1996]
64 pages : illustrations (some color), maps (some color) ; 24 cm.

Lippincott,, 1990.
104 pages ; 22 cm

Puffin Books,, 1987.
124 pages : illustrations ; 20 cm