1978

January 13th
Marcus gets close to perfecting his virus. At last, they are ready. My wonderful leeches! Those of low intelligence, they will never have the privilege of tasting this sense of joy and satisfaction! Now, finally, I can move against Spencer. Soon, I will control everything...

January 31st
Marcus notices a disturbance in his premises: The devices I set to protect my work have been disturbed; it appears someone came looking for "T" and the leeches. Fool. No doubt it's Spencer's group.

February 3rd
Marcus notes development on Leech growth: Administrated "T" into 4 leeches. Their will to survive leads them first to parasitism and predation, then they breed and multiply. Such single minded biology makes them attractive candidates for bio-weapons research. Afterwards, no major changes observed.

February 10th
Marcus furthers his research on Leech growth: 7 days since the administration of the "T". Rapid growth to double former size, signs of transformation emerging. Spawning successful, they double their numbers in an hour, but their ravenous appetites lead them to cannibalism. Hastened to increase food supply, but lost 2.

February 11th
Marcus notices more disturbances at his premises: Today, I again found evidence of tampering around the entrance to the labs. If that is what they're after, I must find a suitable way to deal with them. Perhaps I should have William and Albert smoke out the pest... Those two are the only ones I trust. Apart from the beloved leeches, of course, But Spencer... It wouldn't end there... Would it? I will announce "T" at the next directors meeting and collect my just rewards...

March 7th
The Leech growth report continues: Provided them with live feed, but lost half when the live food fought back. However, the leeches are learning from experience, and are beginning to exhibit group attack behavior. They are also ceasing cannibalism. Their evolution is exceeding expectations.

April 22nd
The Leech growth report continues: The leeches no longer exhibit individual behavior, even when not feeding, they move as a collective. They consume everything I offer with remarkable efficiency.

April 30th
The Leech growth takes a sinister turn: An employee has stumbled onto my experiments. Can a human be a food source? How will the leeches respond?

June 3rd
Marcus’ report on the leech growth is completed: A day worthy of commemoration. Today they began to mimic me! Surely they recognize their father... Wonderful children, No one will take you away...

29th July
Umbrella close the Training Facility in the Arklay Mountains. Marcus however continues his research regarding the T-Virus.

31st July
The now 18 year old Albert Wesker and 16 year old William Birkin arrive at the Spencer Mansion in the Arklay Mountains for the very first time. The mansion is Spencer’s own research laboratory for the T-Virus. Birkin and Wesker become chief researchers. Birkin searches through research documents of the Ebola virus which had been discovered in Africa. Wesker notes how 90% of people infected with the Ebola virus will die, and how frightening it would be to be used as a weapon. Spencer, whom has already established a company - Umbrella Inc. as a pharmaceutical company and also to specialise in creating a cure for Ebola. Secretly however, Umbrella is used to create Bio-Organic Weapons, or BOW. In an early experiment for such a weapon, Birkin ponders on taking the Mother Virus, discovered by James Marcus, Edward Ashford and Ozwell E. Spencer and adding Ebola to it, he soon forgets this when he and Wesker witness Lisa Trevor for the first time. From this point on Wesker and Birkin, with the help of Marcus in the shadows – continue research on the T-Virus.