Daniel Cook and his sister, Beatrice, are thrilled to be studying
dragonology with Dr. Ernest Drake--they're even awaiting the hatching of
a dragon's egg in their care! But all is not well: there are rumors of a
deadly plague affecting dragons around the world. Could dark
dragonologist Alexandra Gorynytchka be behind the mysterious illness?
The siblings soon discover that the secret to curing the dragons might
be found in the Liber Draconis, a diary written by a wise dragon ages
ago--if only they could decipher it! So they set off (with their
mischievous dragon chick in tow) on the Dragon Express, riding one
dragon after another in a race to bring Liber Draconis--and a cure--to
Dr. Drake before it's too late.