The concepts are my own.
Harry used the week of September 12 to accumulate the needed components for his first glyph.
And to make sure he would have space and peace to make his first crystal on the tenth he imbued the door to the basement with magic, so none other then himself was able to notice the basement, added to the fact his relatives never used the basement for anything, it entrance being inside the garage out of the way the spell toke very well to the door.
On the twelfth, after Vernon hacksaw snores were so loud that you couldn't hear anything more on the house Harry went to the basement where he already had made the Compression Glyph on the floor.
Using Silica to draw a downward pointing level four Sierpinski triangle, to symbolize the high amount of energy in the middle of the Glyph, and alternating level one triangles to form the border, with the proper mixture of materials to direct energy to inside the Glyph.
To define the compression intent the three level two, empty triangles of the middle triangle, were filled with (Hesi) mixture and saturated with the intent of compressing the middle into crystal.
Filling a hexagon in the level one, empty triangle. Harry began drawing his first crystal circuit: A three way magic accumulator, with an energy core in the middle and three spell slots to be emitted.
Before activating the Glyph Harry charged the intents for each of the tree spells:
Hide the sound emitted in this room;
Hide the light emitted in this room;
Hide the magic present in this room;
With his obscuring intents charged on the spell slots, Harry begun using his magic to channel the earth magic into the Glyph.
A strong draw of ambient magic signaled to him the activation of the Glyph, with a pale light concentrating slowly into the soon to be crystal.
It took ten minutes to compress the components of the circuit into a fine crystal plaque.
Unknown to him, the Glyph magical draw, made the Obliviators' skeleton crew have to mount on brooms, to try to find what could have caused all magical detectors of Surrey to go crazy at the same time and with the same intensity, with the commander of the squad cursing more then a sailor because of the hour and not enough Galleons on his vault for this kind of job, they took to the sky and assumed a compass formation with special detectors made to scan a short distance from the formation, for high charges of residual magical energy. It took the squad all night to scan the County and at morning, they had to post their findings to the Head of the Department of Magical Law Enforcement, mainly because the fine combing found nothing.
It wasn't a good Sunday morning, when an official owl was waiting for her at the breakfast table with an urgent summon to work.
Good thing that Susan was a morning girl. At last she could stay the morning with the Abbots.
After waking and dressing her niece, she ushered her through the floo and went herself to her private fireplace in her office.
Waiting her was a very tired Oswald Lamber, the Midnight obliviator's squad's leader.
"Morning Ma'am." Lambert tiredly greeted her.
"What's the urgency Lambert?"
"Today at two o'clock all Surrey's magical detectors activated at the same time. The readings were beyond the detectors network precision, so no epicenter could be found, so we took the low range residual detectors. Nothing Ma'am there wasn't a residual reading on the County strong enough to what activated the detectors."
"Did you get a list by District of the Floo points?"
"Yes, it is one very small branch, all but one connection is in Mole Valley close to the the North Downs, the other is in a Squib's home in Elmbridge."
"What was the newest point established?"
"It was the one in Elmbridge, November of 81, in the name of one Arabella Figg."
This was strange, to move right after the end of the war, to a completely muggle region and to connect herself to the Floo Network.
"Put a register quill bound to her fireplace. I want to know every call done and what is sad in them weekly."
"Understood Ma'am."
Lambert went away, leaving her alone in the office. After checking if there wasn't any update in her paperwork she left the office to go and gather Susan.
The simple magical plaque was beautiful, the size of a coin, emitting an almost noiseless aura and making the basement a Dursley's free room.
With the basement under the house, neither Petunia, nor Vernon, used it as storage, the garden shed stored the cleaning and gardening supplies, the garage has all of Vernon's tools, the rest was in the attic. So Harry now have, an empty room for himself were he could do as much magic as he wanted.
The first thing he did, was to banish all dust of the basement to Dudley second room, the one with his broken toys.
The second was to get a comfortable mattress so he could sleep, he only had to put a small compulsion so when Petunia went to clean the guest room, she would decide that a new mattress was needed, before Marge next visit.
The third was to make a second compulsion at the cup board door, so his relatives would forget that he slept there and wouldn't care for the blank in their memories.
And at last he could sleep a good night.
