Weirdo Halloween

Weirdo Halloween was the sixteenth book in the Goosebumps HorrorLand book series, and the 4th book in the Chiller House arc. At over 200 pages, it is the longest Goosebumps book ever.

Plot
On October 30, brother and sister Chris and Meg rescue a young child in a costume stuck in a bush, only to discover the "kid" is really Bim, a smelly alien with a lot of disgusting habits, who promptly swears allegiance to them. On October 31, Weirdo's people invade Earth, and the twins find their souvenir from HorrorLand maybe the only thing that can save or harm them! In the third part of the story, Meg returns to HorrorLand, and is sent on a mysterious mission by Jonathan Chiller. Meg also spots another her running around.

Cover
As with other books in the series, the cover of this book has two different versions. The first, shown above, is the regular image shown on the front and back covers of books. There is a second version without the Special Edition banner. Instead, it displays the regular second arc banner in its normal position.