The Preliminary Invocatio

The Preliminary Invocation (Necronomicon)

When the time has come to summon the Watcher the first time, the place of thy calling must be clean, and a double circle of flour drawn about thee. And there should be no altar, but only the new Bowl with the three carven signs on it. And the Conjuration of the Fire should be made, and the sacrifices heaped thereupon, into the burning bowl. And the Bowl is now called AGA MASS SSARATU, and to be used for no other purpose, save to invoke the Watcher.

And the bowl must be lain between the Circles, facing the Northeast. And thy vestments should be black, and thy cap black. And the Sword must be at hand, but not yet in the ground. And it must be the Darkest Hour of the Night. And there must be no light, save for the AGA MASS SSARATU. And the Conjuration of the Three must be made, thus:

ISS MASS SSARATI SHA MUSHI LIPSHURU RUXISHA LIMNUTI!
IZIZANIMMA ILANI RABUTI SHIMA YA DABABI!
DINA DINA ALAKTI LIMDA!
ALSI KU NUSHI ILANI MUSHITI!
IA MASS SSARATI ISS MASS SSARATI BA IDS MASS SSARATU!

And this special Conjuration may be made at any time the Priest feels he is in danger, whether his life or his spirit, and the Three Watchers and the One Watcher will rush to his aid.

This being said, at the words IDS MASS SSARATU the Sword must be thrust into the ground behind the AGA MASS SSARATU with force. And the Watcher will appear for the instructions to be made by the Priest.

I must again express the dangers involved in this if the correct proseduers are not met

Firstly there has to be a preliminary sacrifice made in the bowl ( As said before never a blood one ) and they are three sigils that must be inscribed on the bowl.

The words given to chant must be pronounced correctly similar to Enochian, where they must not be rushed and broken up. For example MUSHI LIPSHURU would be pronounced MU-SSH-HI LIP-SHU-RU.

If ANY of the incantations are done wrong, or the wrong sacrifice offered, the watcher will apear as an enemy and hunt down and devour the person responsible. Even the elder gods cannot stop the watcher once the incantation is done wrongly.

Link - http://www.lovecraft.ru/texts/necro/simon_eng/watcher.html