Going Afterlife by Alastair Miles
Denton Smith has landed in the afterlife with no idea as to how he got there. The paperwork is a nightmare but his new friend, Tarquin, is willing to help him unravel the mystery of his demise. Among other shockers, Jesus is not what Denton expected, but then again, neither is learning to walk through walls or travel through time and dimensions. Maybe the afterlife is something Denton can get used to after all!