The Seven Serpents (1984)

From the back cover:

Your quest to recover the Crown of Kings has led you to the brutal wilderness of the Baklands, on the far side of which lies the dark Mampang Fortress. Seven serpents with elemental powers speed ahead of you, intent on warning the evil Archmage of Mampang of your coming. Can you slay all seven before they reach him?

The Seven Serpents is Book Three of Steve Jackson's four-part Sorcery! epic. In this gargantuan quest, you must journey from the Shamutanti Hills (Book One), through the dangerous streets of Kharé (Book Two), across the wilderness of the Baklands (Book Three) and finally (Book Four) to the terrifying Mampang Fortress itself.

Sorcery! introduces an exciting new system of magic to the Fighting Fantasy genre. Choose whether to play as either a sword-wielding warrior, relying on your strength in battle, or a spell-casting wizard, whose survival will depend on your knowledge of the Sorcery! Spell Book's darkest secrets. Each book in the Sorcery! series is a complete adventure; you don't need to have read a previous book to move on to the next.

• Sorcery! <-- Sorcery! Book 1: The Shamutanti Hills
• Sorcery! 2 <-- Sorcery! Book 2: Kharé - Cityport of Traps
• Sorcery! 3 <-- Sorcery! Book 3: The Seven Serpents
• Sorcery! Part 4 <-- Sorcery! Book 4: The Crown of Kings

This gamebook was converted into a d20 adventure, The Seven Serpents.