Big Bad BeetleBorgs (1996)

S1E7 Say the Magic Word

Flabber assists Roland in enhancing his magic skills by giving him a special book on tricks. While practicing his latest act, Roland heads to Zoom Comics but realizes he's lost the book along the way. He successfully makes Jo vanish but forgets the spell to reverse it. Upon realizing the book is missing, he knows he must locate it fast; otherwise, Jo will remain invisible indefinitely.