Loreto Sacramento toured her charred home in Kalihi in disbelief on Wednesday, even as she made funeral arrangements for her younger sister who was injured in the fire and died July 11 at Straub Medical Center’s burn unit.

The home on Haumana Place near Middle Street shared a common wall and part of a roof with a similar two-story home on Owene Lane, where the fire started on July 5.

Fire officials have not been able to determine the cause of the blaze, Honolulu Fire Department Capt. Scot Seguirant told the Honolulu Star-Advertiser Wednesday. “It started on the Owene side but there wasn’t enough evidence to say … exactly (what) was the cause of it.”

In an email Seguirant wrote on the day of the fire, he said that, “Cries for help were heard and (fire) personnel located a 75-year- old female in a bedroom on the second floor in the left front corner of the structure.”

On Wednesday, the white outline of a cross remained on a scortched wall of what was once Adela Bumanglag’s bedroom.

“She was very religious,” Sacramento said. “She was Catholic.”

Bumanglag, 75, was in critical condition with second-degree burns to her face and torso when she was found. A neighbor — a 27-year-old woman — suffered smoke inhalation.

Fire officials said that 17 people lived in the Owene Lane house and 14 were home at the time.

But tenant Jason Tolentino said the number is inaccurate.

“Not 17 — more,” Tolentino said. “More like 20.”

He’s now staying with his sister in Kalihi Valley.

Sacramento bought the two-story, six-bedroom, one-and-a-half bathroom Haumana Place home so her parents did not have to move back to the Philippines.

After they died, Sacramento let her sister live in one of the rooms rent free. Sacramento rented another bedroom to Tolentino for $450 and another bedroom to a couple for $650.

Now Sacramento is dealing with her insurance company while mourning Bumanglag’s death.

“She was my sister,” Sacramento said.