After Hagrid dropped off Harry at Privet Drive, Harry carried his stuff through the front door to his cupboard under the stairs.
Approaching the cupboard, Harry opens it, to reveal a bare cupboard.
"It's upstairs" remarked Aunt Petunia from behind. "In the old toy room. That is your room now."
She didn't say more than that, and turned away to the kitchen.
Harry carried his stuff up the stairs to the old toy room, now his room. The stairs creaking under his weight.
Entering the room, Harry notices a bed with a single blanket, and his stuff from the cupboard piled in the corner.
Placing his stuff down, and making sure not to damage Hedwig's cage, who hooted softly, Harry took out his books, shuffling through them until he got the book by Gaunt.
Just then the door swung open, and Uncle Vernon appeared. "Right then" he said, his thick mustache bristling, "you are not using any of this stuff while here."
He moved his fat frame to pick up all Harry's supplies, including Hedwig, and carried them downstairs, where he locked them in the cupboard.
Harry kept his book under the covers, and made sure to hide the bulge.
After Uncle Vernon was finished, Harry took his book under the covers and continued to read the book.
Turning to near the end of the book, Harry read "Currency in the Realm of the Dead."
"Whether they be demons, damned, or wanderers, there is a currency in the realm of the dead. Dark Lords produce "silver". They harness the power of groups, deteriorating them, to create a single sharp focused attack which drives fear in any individual. They use a group as the long side of a fulcrum, and create a devestating individual effect such as the short end of a fulcrum. This book is not about "silver". Instead, it is about "copper".
Those that produce "copper" use powerful focused energy to spread apart across a group. Like using the short end of a fulcrum to move the larger end. This is common in an individual taking a large personal debt, affecting a large group of creditors. A "copper" producer is known as a Debt Lord.
There are those that produce "gold", those that use a large group to create a single focused attack to then have that focused energy spread out across another group. This is like a series of fulcrums, where the large end is used to move the short end, and then that moves the short end of another fulcrum, thus moving the large end of the second fulcrum. The net effect is one group used to affect another group. This is commonly seen as wars. A "gold" producer is a War Lord.
There are other combinations, but that is for another book.
The realm of the dead interferes to support all three producers. But this is always at the detriment to the living. Those that produce currency for the realm of the dead are always targeted in the realm of the living. And rightly so. The only way to continue being a Debt Lord, War Lord, or Dark Lord is to have your losses written off as a force of nature. A Debt Lord's losses are in money, a War Lord in body, while a Dark Lord in the soul."
Harry placed the book down, and tucked it under his mattress. Turning off the lights, Harry goes to sleep for the night.
A week later, Harry is outside the Last Hope Orphanage, looking to get a glance at Gravity and Electrostatic. Harry sees them, a pair of dark haired twins, with bony features, at the far end of the play yard. They have grown quite a bit in the five years that Harry had lost them. But they seemed content with their lot at the orphanage.
Harry is unsure when would be the next time that he would visit them, but he promised himself that when the opportunity arises he will sneak off to visit them with this teleportation.