Stallion by Starlight
Mary Pope Osborne
Viking Ships at Sunrise
Fugitive Telemetry
Martha Wells
Blizzard of the Blue Moon
Monday With a Mad Genius: A Merlin Mission
Magic Tree House (38)
Summer of the Sea Serpent: A Merlin Mission
Magic Tree House (31)
Winter of the Ice Wizard: A Merlin Mission
Magic Tree House (32)
Season of the Sandstorms: A Merlin Mission
Magic Tree House (34)
Night of the New Magicians: A Merlin Mission
Magic Tree House (35)
Christmas in Camelot: A Merlin Mission
Magic Tree House (29)
Leprechaun in Late Winter: A Merlin Mission
Magic Tree House (43)
Abe Lincoln at Last!: A Merlin Mission
Magic Tree House (47)