Gain an additional 5 temporary hit points for each slot level above 1st. The damage is reduced by an additional 1d10 for each slot level above 2nd. You may maintain concentration on this spell for an additional 2 rounds for each slot level above 4th. Increase this spell's initial and ongoing damage by 1d4 per slot level above 2nd. The granted hit points increase by an additional 5 for each slot level above 2nd. The spell's range increases by 30 feet for each slot level above 1st. You may create an additional alarm for each slot level above 1st. The spell's range increases to 600 feet, but you must be familiar with the locations you ward, and all alarms must be set within the same physical structure. Setting off one alarm does not activate the other alarms. You may choose one of the following effects in place of creating an additional alarm. The effects apply to all alarms created during the spell's casting. Increased Duration. The spell's duration increases to 24 hours. Improved Audible Alarm. The audible alarm produces any sound you choose and can be heard up to 300 feet away. Improved Mental Alarm. The mental alarm alerts you regardless of your location, even if you and the alarm are on different planes of existence. When using a spell slot of 5th-level, add the following to the list of forms you can adopt.