Notes

1 volume (unpaged)
chiefly illustrations.
Summary: Sally Tinker is the world's foremost inventor under the age of twelve, but her arch-nemesis Dexter Maelstrom has long coveted the title. When Dexter invites Sally to view his latest invention, the extraordinary dinosaur-creating-devolving ray, things quickly deteriorate into an all-out battle of wits, wisdom and outsized chickens. (Publisher)