A Conventional Boy

In 1984, Derek Reilly was just another teenage nerd growing up in middle England. But his love of D&D caused him to fall afoul of the Laundry, a government agency tasked with suppressing supernatural threats. It turns out that sometimes ninth level wizard spells drawn on the back of your maths textbook can look suspiciously like actual magic...

Decades later, Derek is a long-term inmate at Camp Sunshine, a centre for deprogramming captured cultists. But Derek finally has reason to escape, and an escape plan to out into action: he wants to attend his first gaming convention. While Derek's D&D games were fictional, a game at the con really is a dread ritual designed to summon a great evil into our world, and it's up to Derek and his players to stop them.

The fate of the world may depend on the contents of Derek's dice bag.

Book 13 in the Laundry Files series.