Arthur's Birthday Surprise

Arthur's Birthday Surprise is an 8x8 book.

Summary
It's D.W.'s birthday and all she wants is Mary Moo Cow (purple with pink spots--not pink with purple spots!) But when Mary Moo Cow gets sick to her stomachs (cows have four, you know), D.W. thinks her party is ruined. But Arthur saves the day when he arrives--disguised as Mary Moo Cow!