Chell's new slice is a sequel to Chell's last cake.
Chell had simply passed out after eating too much cake. But she was feeling better.
Her dad gave her money for a new slice. She went to the bakers and got a cake at a discount price. She ate the cake and enjoyed it.
"Yum yum" she said "I love cake"
"Care for another slice?" said the nice baker
Chell pondered, then smiled "yes please"