Tibble and Grandpa by Wendy Meddour & Daniel Egneus.

Tibble and Grandpa by Wendy Meddour, illustrated by Daniel Egneus. Oxford University Press 2019. 

Tibble tries to find a way to get Grandpa to talk to him - to come out of his grief after the death of his wife, Tibble's Granny. 

A simple yet powerful story about memories and connections.