Gustav and Henri. Vol. 1, Space time cake!
Andy Matthews (Author), Peader Thomas (Illustrator)
"Opposites attract in this humorous graphic novel series about best friends, Gustav and Henri (short for Henrietta!). Meet Gustav and Henri. This is their book. It's a bit about friendship and a lot about snacks (especially nachos!). They love doing normal things together, like: finding a lost shuttlecock -- IN SPACE! returning an overdue library books -- 100 YEARS AGO! or making cakes -- IN THE BATH! You know, completely boring things. Join them for 100% of your recommended daily intake of adventure, escapades, and capers--all in one book!" -- Publisher's website