Nature.

"Got it!" said Tybalt triumphantly, breaking into their conversation. He thrust at the trapdoor and it flew open, allowing a shaft of sunlight to filter in, causing the zombies to wince. The man grunted as he climbed onto a large root that was protruding from the wall and stuck his head through the hole above, peering around carefully for several moments.

"All clear," he shouted down eventually.

With some small effort, the group climbed out, to find themselves in a pleasant forest glade.

Sunlight filtered through the leafy cover of large trees that rose high overhead. Grass covered the floor, interspersed with the occasional splash of colour contributed by various flowering plants, creating a pleasant carpet underfoot.

Birds chirped in the trees and a squirrel scampered along a branch, doing whatever squirrels do. It was an idyllic scene of natural beauty.

"Ug! Gross," said Cuthbert, wrinkling what remained of his nose.