| Foreword | 7 |
| I | Introduction | 9 |
| II | Perceval's Early History, according to Chretien de Troyes | 39 |
| III | The Defeat of the Red Knight and the Meeting with Blancheflor | 52 |
| IV | Perceval's First Visit to the Grail Castle | 66 |
| V | The Sword and the Lance | 79 |
| VI | Perceval's Task | 98 |
| VII | The Central Symbol of the Legend: The Grail as Vessel | 113 |
| VIII | The Grail as Stone | 142 |
| IX | The Table, the Carving Platter and the Two Knives | 161 |
| X | The Continuation of Perceval's Quest | 173 |
| XI | The Suffering Grail King | 187 |
| XII | The Figure of Gauvain; Perceval's Return to Christianity | 213 |
| XIII | Gauvain's Adventures | 228 |
| XIV | Perceval's Further Adventures | 253 |
| XV | The Redemption of the Grail Kingdom; Perceval's End | 290 |
| XVI | Robert de Boron's Roman de l'Estoire dou Graal | 302 |
| XVII | The Problem of the Trinity | 317 |
| XVIII | The Figure of Adam | 331 |
| XIX | The Trinity: The Problem of the Fourth | 338 |
| XX | The Figure of Merlin | 347 |
| XXI | Merlin as Medicine Man and Prophet | 357 |
| XXII | Merlin and the Alchemical Mercurius | 367 |
| XXIII | Merlin's Solution of the Grail Problem | 379 |
| XXIV | The Disappearance of Merlin | 390 |
| Bibliography | 401 |
| Index | 419 |
