Travel

Travel through the Abyss is different to travel in traditional D&D due to the verticallity of the setting. Each layers section in this supplement provides simple calculations with yes or no questions that can be used to determine how far characters travel per hour, add or subtract from the starting travel distance.
If characters should try to descend or ascend using feather fall or fly, make it obvious how bad it may turn out either by simply telling them or showing them with random encounters which involve flying creatures, creatures with ranged attacks or battering them saving throws versus the powerful winds present in the 2nd and 3rd layers.