Easter Egg Reference Alert:
The Ratway’s Drahff and Hewnon Black-Skeever (the first guys you meet down there) are tributes to Fritz Leiber’s Fantasy novels’ characters, Fafhrd and the Gray Mouser. Drahff is an anagram of Fafhrd, Gray Mouser is similar to Black Skeever, and Hewnon is an anagram of Nehwon, the world that Fafhrd and Gray Mousey live in. If you like fantasy books this is a really good series and pretty easy-to-read too. Humourous and fun.
Fafhrd and the Gray Mouser were a barbarian/thief adventuring duo, in a number of stories written by Fritz Leiber. The Grey Mouser, agile and clever (though not particularly cautious), mean swordsman and trickster, was a huge influence in the creation of the D&D Thief - more than Bilbo Baggins ever was.
Leiber’s stories about the duo have been collected in the “Swords” series: