Ancient Runes of Protection

This old leather-bound tome is reinforced with magical runes and an iron lock (DC 20 to open). As an action, you can touch the book’s cover and cause it to lock as if you cast arcane lock on it. When found, the book contains the following spells: arcane eye, elemental bane, major image, nondetection, protection from energy, skill empowerment, stoneskin, and summon construct. It functions as a spellbook for you.

While you are holding the book, you can use it as a spellcasting focus for your wizard spells.

The book has 3 charges, and it regains 1d3 expended charges daily at dawn. You can use the charges in the following ways while holding it:

• If you spend 1 minute studying the book, you can expend 1 charge to replace one of your prepared wizard spells with a different spell in the book. The new spell must be of the abjuration school.
• When you cast an abjuration spell, you can expend 1 charge to grant a creature you can see within 30 feet of you 2d10 temporary hit points.

Notes: wizard