Dog Sled

My children are currently disobeying my "no toys downstairs" rule and have built a dog sled in my family room. The sled was originally pulled by a line of diminutive Snoopys but eventually every stuffed animal in the house (we have way too many) was needed to pull the heavy load of children and supplies.

Can you tell what we've been reading lately? I love when my children play literature-inspired games.